Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 37. Отображено 37.
22-10-2008 дата публикации

Method for reverse circulation drill head injector hole and bottom injection hole structural parameter optimization

Номер: CN0101290638A
Автор: HAO SHUQING, SHUQING HAO
Принадлежит:

The invention relates to a method for accurately determining structural parameters of an injector hole and a bottom jet hole of an inverse circulation drill bit which can be used for air drilling. According to the condition and the diameter size of a provided drill bit and the initial condition of the diameter of a central passage, a selectable parameter design proposal of the injector hole and the bottom jet hole of the inverse circulation drill bit is reasoned out by means of a built-in solving program through computerized integrated processing and comprehensive consideration of problems. The method comprises the following steps that: a system with an interactive and friendly user interface is established inside a computer; through inputting two initial conditions of a drill bit diameter and a drill bit central passage diameter in a solving table in the user interface, a parameter optimization proposal of the injector hole and the bottom jet hole in the drill bit can be obtained directly ...

Подробнее
Номер записи: 1
01-08-2023 дата публикации

Low-carbon park carbon management and control method and system based on carbon accounting intelligent tracking

Номер: CN116523115A
Автор: TAN ZHUKUI, WANG YANG, FU YU, CAI YONGXIANG, XIAO XIAOBING, LIU ANJIANG, HAO SHUQING, ZHENG YOUZHUO, LI YUE, MIAO YU, ZHANG HENGRONG, LI QIANMIN, SUN ZONGYU, QIAO BIAO, LIANG SHUKUI, ZHANG GUANGQIU
Принадлежит:

The invention discloses a low-carbon park carbon management and control method and system based on carbon accounting intelligent tracking, and the method comprises the steps: determining a low-carbon park check range based on the carbon emission in a low-carbon park and the carbon emission offset by vegetation; collecting carbon source and carbon sink data in the checking range, and establishing a dynamic prediction model for the carbon emission of the low-carbon park; collecting carbon footprints in the low-carbon park, and combining with the prediction model to carry out full-period and full-field carbon accounting on the low-carbon park; and performing intelligent carbon management and control on the low-carbon park by combining the Internet of Things according to a model prediction result. The problems that a traditional load prediction method is high in simulation modeling difficulty, difficult in basic data acquisition, poor in calculation accuracy and unable to be copied and popularized ...

Подробнее
Номер записи: 2
28-07-2023 дата публикации

Photovoltaic area power failure risk assessment method and device, electronic equipment and storage medium

Номер: CN116502894A
Автор: LI WEI, LUO WENYUN, HUA LEI, BAI HAO, HU PENG, WANG ZUFENG, YAO RUOTIAN, FU YU, HAO SHUQING, XU MIN, LI QIANMIN, WANG ZHUOYUE, LIU TONG, CAI YONGXIANG, REN JIAKUAN, YANG HAO, CHEN LU, LI SHIQI
Принадлежит:

The invention discloses a photovoltaic area power failure risk assessment method and device, electronic equipment and a storage medium, which are used for solving the technical problem that the existing photovoltaic area power failure risk assessment is low in efficiency and accuracy. The method comprises the following steps: acquiring a risk assessment index of a photovoltaic transformer area to be assessed, and calculating a plurality of power failure risk assessment sub-indexes corresponding to the photovoltaic transformer area based on the risk assessment index; performing analytic hierarchy process on the plurality of power failure risk assessment sub-indexes to obtain respective corresponding power failure assessment ratio coefficients, and respectively calculating power failure index weights corresponding to the power failure assessment ratio coefficients; performing weighted comprehensive evaluation processing on each power failure index weight, and determining a comprehensive power ...

Подробнее
Номер записи: 3
18-08-2023 дата публикации

Lightning current waveform rapid identification method and system

Номер: CN116609576A
Автор: XIAO XIAOBING, LI YUE, CAI YONGXIANG, FU YU, LIU ANJIANG, HAO SHUQING, LI HUAPENG, HE XIAOMENG, WANG YANG, LU CAIJIANG, XIONG NAN, ZHANG YANG, ZHENG YOUZHUO, DOU CHEN, LONG QIUFENG, CHEN CHENG, MIAO YU, HE XINYI, WANG YINGSHU, GU TINGYUN, DAI QIJI, LI XINHAO, ZHANG HENGRONG, SONG ZIHONG, LI QIANMIN, WANG ZHUOYUE, KIM GYEONG-WON, KONG XIANGLUN
Принадлежит:

The invention discloses a lightning current waveform rapid identification method and system, and the method comprises the steps: verifying the unipolarity of a waveform signal; monotonicity of the waveform signal is verified; verifying concavity and convexity of the waveform signal; verifying energy distribution of the waveform signal on different frequency bands; and if the unipolarity, monotonicity, concavity and convexity and energy distribution verification pass, a pulse signal is triggered to store a lightning waveform signal. The FPGA is used as a processor, the waveform output by the sensor is sent to the FPGA through a sampling chip after signal conditioning, an identification result is given through comprehensive analysis of waveform polarity, monotonicity, concavity and convexity and other wave head time domain characteristics and energy distribution characteristics on different frequency bands, and compared with an existing identification algorithm, the response speed and reliability ...

Подробнее
Номер записи: 4
12-05-2023 дата публикации

Roof photovoltaic voltage and current acquisition device

Номер: CN116111947A
Автор: CAI YONGXIANG, XIAO XIAOBING, LI YUE, HUANG BOYANG, FU YU, JIN XIN, XIAO YONG, HE XIAOMENG, PAN TINGZHE, WANG YANG, FANG YANG, LIU ANJIANG, KUMAKUSU, ZHENG YOUZHUO, ZHANG YANG, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, BAN SHIXUE, ZHANG HENGRONG, DAI QIJI, LI XINHAO, SONG ZIHONG, KIM KYOUNG-WON
Принадлежит:

The invention discloses a roof photovoltaic voltage and current acquisition device comprising a voltage and current acquisition device, and one end of the voltage and current acquisition device is provided with an insertion block; the inserting groove device is fixedly arranged on the wall of a house and comprises a shell, an inserting groove is formed in the side wall of the shell, a fixed block and a movable block are arranged on the inner wall of the shell, a spring is connected between the movable block and the inner wall of the shell, the inserting block is slidably connected into the inserting groove, and the inserting block makes contact with the fixed block and the movable block in a matched mode. The slot device is installed in the photovoltaic panel circuit in series, the insertion block is inserted into the slot device, and the voltage and current acquisition device is connected in series into the photovoltaic panel circuit, so that the operation information of the photovoltaic ...

Подробнее
Номер записи: 5
23-05-2023 дата публикации

Multi-combination switch power distribution area optimization control method and device based on DQA algorithm

Номер: CN116154810A
Автор: XIAO XIAOBING, LI YUE, CAI YONGXIANG, JIN XIN, FU YU, HUANG BOYANG, XIAO YONG, HE XIAOMENG, WANG YANG, FANG YANG, KUMAKUSU, LIU TONG, SHI XUNTAO, YU LEI, BAI HAO, XU JIN, PAN TINGZHE, WANG ZUFENG, LIU ANJIANG, ZHENG YOUZHUO, ZHANG YANG, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, GU TINGYUN, DAI QIJI, ZHANG HENGRONG
Принадлежит:

The invention discloses a multi-combination switch power distribution area optimization control method and device based on a DQA algorithm, and the method comprises the steps: collecting the information data of a power distribution area, building a power distribution area optimization objective function and constraint conditions, and carrying out the switching-on and switching-off presetting of a multi-combination switch; establishing a virtual heuristic network; performing parameter updating on the virtual heuristic network by using a DQA algorithm through an optimizer, outputting the optimal power distribution area power network obtained by the optimizer, and performing optimization control; according to the method, the number of controllable switches is reduced, the investment and operation and maintenance cost is reduced, the action space and uncertainty are compressed, the calculation speed is increased, the optimization speed is increased, and the required space is saved. The power ...

Подробнее
Номер записи: 6
09-05-2023 дата публикации

Data center-containing power distribution network comprehensive planning method considering source load uncertainty

Номер: CN116090762A
Автор: ZHANG RUIFENG, ZHANG HENGRONG, LIU YINLIANG, FU YU, LIN XINHAO, DUAN SHUYIN, YU LEI, XIAO XIAOBING, ZENG JIE, WU PENG, WANG ZHUOYUE, LI YUE, ZHOU ZHONGQIANG, LONG SHAN, ZHOU ZHI, TAN HAI, HE XIAOMENG, HE XINYI, KUMAKUSU, LI XINHAO, MIAO YU, LI QIANMIN, SONG ZIHONG, HAO SHUQING, LIU ANJIANG, WANG YANG, ZHENG YOUZHUO, LUO YUANLAI, ZHANG YANG
Принадлежит:

The invention discloses a data center-containing power distribution network comprehensive planning method considering source load uncertainty, and the method comprises the steps: inputting a DC power distribution network topological structure and parameter information according to a selected data center-containing power distribution network; according to the provided parameter information of the number-containing center power distribution network, establishing a deterministic number-containing data center power distribution network comprehensive planning model; obtaining a compact form through a deterministic data center-containing power distribution network comprehensive planning model; establishing a data center-containing power distribution network distribution robust comprehensive planning model considering uncertainty through a compact form of a deterministic data center-containing power distribution network comprehensive planning model; solving an output result of the robust comprehensive ...

Подробнее
Номер записи: 7
04-04-2023 дата публикации

GMM-based power distribution network photovoltaic and electric vehicle charging station collaborative planning method

Номер: CN115907339A
Автор: FU YU, CAI YONGXIANG, BAI HAO, XIAO XIAOBING, LI YUE, LI WEI, WANG YANG, LIU TONG, LIU ANJIANG, KUMAKUSU, FANG YANG, ZHENG YOUZHUO, HAO SHUQING, MIAO YU, XU JIN, ZHANG YANG, WANG ZUFENG, LI XINHAO, REN JIAKUAN, ZHANG HENGRONG, SONG ZIHONG, BAN SHIXUE
Принадлежит:

The invention discloses a GMM (Gaussian Mixture Model)-based power distribution network photovoltaic and electric vehicle charging station collaborative planning method, which comprises the following steps of: depicting a distributed photovoltaic output uncertainty line based on GMM: modeling the probability distribution of photovoltaic output by adopting the GMM and modeling the photovoltaic output uncertainty by adopting the GMM; and establishing a power distribution network multi-element source load multi-target collaborative planning model, establishing a unified typical operation scene based on the photovoltaic output uncertainty model, planning an electric vehicle charging pile and a distributed photovoltaic, constructing a planning model, and carrying out constant volume according to related constraints and photovoltaic output time sequence uncertainty. And site selection is carried out through a multi-target particle swarm algorithm, and a planning scheme is determined. According ...

Подробнее
Номер записи: 8
25-04-2023 дата публикации

Power system voltage stability assessment method based on improved random forest

Номер: CN116011330A
Автор: XIAO YONG, XIAO XIAOBING, LI YUE, CAI YONGXIANG, JIN XIN, FU YU, HUANG BOYANG, PAN TINGZHE, HE XIAOMENG, WANG YANG, FANG YANG, LIU ANJIANG, KUMAKUSU, ZHENG YOUZHUO, ZHANG YANG, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, ZHANG HENGRONG, DAI QIJI, WANG ZHUOYUE, BAN SHIXUE
Принадлежит:

The invention discloses a power system voltage stability evaluation method based on an improved random forest. The method comprises the following steps: constructing a training sample subset of a base decision tree based on a P-V curve analysis result and a voltage stability state interval; constructing a candidate attribute set based on the information gain rate of the attribute in each node in the training sample subset, and determining the final split attribute of each node in a random selection manner; constructing a random forest learning model by using an absolute majority voting method in combination with a strategy according to a splitting result; the rule coverage is comprehensively considered through a random forest learning model, and voltage stability evaluation is realized according to the reliability rule condition of each base decision-making tree. According to the power system voltage stability evaluation model based on the random forest, off-line analysis is carried out ...

Подробнее
Номер записи: 9
08-08-2023 дата публикации

Illumination intensity inertial prediction method based on multiple weight factors

Номер: CN116561503A
Автор: LI YUE, XIAO XIAOBING, CAI YONGXIANG, XIAO YONG, JIN XIN, FU YU, HUANG BOYANG, HE XIAOMENG, WANG YANG, ZHENG YOUZHUO, ZHANG YANG, LIU ANJIANG, KUMAKUSU, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, TANG XUEYONG, SONG ZIHONG, YE YUANHONG, HUA LEI, WANG YINGSHU, ZHANG HENGRONG, LI XINHAO
Принадлежит:

The invention discloses a multi-weight-factor illumination intensity inertial prediction method, which is characterized by comprising the following steps of: combining historical meteorological data collected in a predicted geographical region of a transformer area according to a time sequence and arranging the historical meteorological data in an ascending order to obtain a data set; preprocessing the data set through data statistics to obtain preprocessed data; calculating the preprocessed data through a time sequence inertial prediction calculation method to obtain a prediction result; according to actual working experience, a weight is given for the first time, and a first illumination intensity prediction mathematical model is formed in combination with a prediction result; probability distribution calculation and confidence interval calculation are carried out on the prediction result to obtain an illumination intensity result; and judging the accuracy degree of each prediction according ...

Подробнее
Номер записи: 10
09-05-2023 дата публикации

Intelligent power distribution operation support system based on multi-source heterogeneous data of power grid

Номер: CN116089899A
Автор: LI ZHIQIANG, GUO TAO, KUMAKUSU, DOU CHEN, GE LINFENG, LI HUAN, WU PENG, ZHU JINGXUN, YU CHANGHAO, JI YUAN, SHU YU, LIU LINJUN, ZHANG XUN, WANG MIAN, HUANG XIAOXI, FU YU, XIAO XIAOBING, ZHANG YANG, DING JIANGQIAO, HAO SHUQING, CAI YONGXIANG, WANG YANG, DAI JIYULEI, XIAO SHUZHOU, LI FEI, MA DINGLI, WANG JIAN, CUI YUNFENG, WU HONGYUAN, YANG LING, LI ZHIGANG, LOU YU, OU ZIMIN, LIAO TINGTING, HUANG LIN
Принадлежит:

The invention discloses an intelligent power distribution operation support system based on multi-source heterogeneous data of a power grid, and the system comprises a data collection module which is used for collecting the multi-source heterogeneous data in each system and transmitting the multi-source heterogeneous data to a data integration module through a data interface; the data integration module is used for cleaning, filtering, recombining and storing the data acquired by the data acquisition module; the data checking module is used for mutually checking the processed data to ensure the consistency, integrity and accuracy of the data; and the data fusion module establishes an association model of the multi-source heterogeneous data for the checked multi-source heterogeneous data according to the association relationship among the data sources, and realizes data visualization. According to the invention, the problems of many distribution network application systems, data dispersion ...

Подробнее
Номер записи: 11
30-05-2023 дата публикации

Data matching method and device for multi-source heterogeneous power grid data fusion process

Номер: CN116186126A
Автор: HUANG BOYANG, XIAO XIAOBING, LI YUE, CAI YONGXIANG, FU YU, JIN XIN, XIAO YONG, PAN TINGZHE, HE XIAOMENG, WANG YANG, FANG YANG, LIU ANJIANG, KUMAKUSU, ZHENG YOUZHUO, ZHANG YANG, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, ZHANG HENGRONG, GU TINGYUN, DAI QIJI, BAN SHIXUE
Принадлежит:

The invention discloses a data matching method and device oriented to a multi-source heterogeneous power grid data fusion process. The method comprises the following steps: converting actual multi-source heterogeneous power grid data into a to-be-matched data string; according to a data ontology matching rule, a core word matching rule and a digital data matching rule in sequence, judging the matching condition of the data of the data strings to be matched, if the digital data matching is unsuccessful, directly judging that the matching of the two data strings is unsuccessful, otherwise, calculating the matching degree of the data strings; judging a data matching result according to the data string matching degree; according to the method, the problem of data matching in the multi-source heterogeneous power grid data fusion process is solved. For the data matching problem existing in the multi-source heterogeneous data fusion process of the power dispatching control system, a powerful technical ...

Подробнее
Номер записи: 12
25-04-2023 дата публикации

Power distribution network multi-body peak regulation energy optimization method and device

Номер: CN116012030A
Автор: FU YU, XIAO XIAOBING, LI YUE, LIU NIAN, CAI YONGXIANG, LIU ANJIANG, MIAO YU, HAO SHUQING, LI QIANMIN, HUANG YUJING, ZHENG YOUZHUO, WANG YANG, KUMAKUSU, DOU CHEN, HAN JIANPEI, ZHANG YANG, ZHANG HENGRONG, BAN SHIXUE, WANG ZHUOYUE, TONG CHENJIE
Принадлежит:

The invention discloses a power distribution network multi-body peak regulation energy optimization method, which comprises the steps of establishing a peak regulation energy optimization framework between a power distribution network operator and a load aggregator, a distributed energy storage operator and a photovoltaic operator based on a reinforcement learning theory; constructing a power distribution network operator model, wherein the optimization target comprises the maximum operation income and the minimum net load curve standard deviation; a cooperative alliance model is constructed based on an internal interaction electricity price and a peak regulation price issued by a power distribution network operator, and the cooperative alliance model comprises a load aggregator optimization model, a distributed energy storage operator model, a photovoltaic operator model and a cooperative game model; comprehensively considering the benefits of the cooperation alliance, and constructing ...

Подробнее
Номер записи: 13
04-04-2023 дата публикации

Distribution transformer district weight and overload early warning method and device based on data mining

Номер: CN115907083A
Автор: ZHENG YOUZHUO, FU YU, XIAO XIAOBING, HAO SHUQING, MIAO YU, LIU ANJIANG, ZHANG RUIFENG, CHEN YU, CAI YONGXIANG, LI YUE, WU PENG, HE HONGLIU, WEN YI, HUANG RUYUN, WANG MIAN, LYU QIANSU, LONG QIUFENG, WANG YANG, LI QIANMIN, WANG ZHUOYUE, ZHANG HENGRONG, BAN SHIXUE, LI XINHAO, SONG ZIHONG, DING JIANGQIAO, ZHENG SHUYI, LI ANJUN, HUA LONG, WU CONGCONG, KIM KYOUNG-WON, YANG WEI, WU YINGSHUANG, XIONG JINHANG, LIU LIANG, WANG MINGWEI, WANG ZHU, CHEN KAILEI, TIAN CHENG, LI HUAPENG, YANG ZHONG, PAN FUXIANG, YANG YEKUI, ZHOU XINAN, GUO DAO, HE PENG
Принадлежит:

The invention discloses a distribution transformer district heavy overload early warning method and device based on data mining, and the method comprises the steps: collecting the internal and external historical data of the heavy overload of a power grid distribution transformer district, and carrying out the preprocessing of the historical data through setting a PID controller; heavy overload characteristic variables are extracted from the preprocessed data, and strong correlation characteristic variables between a single variable or a variable combination and a heavy overload event are screened through multi-variable multi-layer correlation; classifying the strong correlation feature variables to obtain a heavy overload correlation feature set, and performing time sequence analysis on heavy overload data; a weight and overload prediction model is constructed through an XGBoost algorithm, and training verification is carried out. According to the method, the prediction method can be formed ...

Подробнее
Номер записи: 14
04-07-2023 дата публикации

Lightning invasion point positioning method and system based on isolation lightning protection device

Номер: CN116381408A
Автор: XIAO XIAOBING, HAO SHUQING, CAI YONGXIANG, LI YUE, FU YU, HE XIAOMENG, LI HUAPENG, LIU ANJIANG, ZHANG YANG, ZHANG RUIFENG, ZHENG YOUZHUO, WANG YANG, ZHOU HAI, KUMAKUSU, DOU CHEN, TANG XUEYONG, WANG YINGSHU, LONG QIUFENG, MIAO YU, HE XINYI, WU PENG, ZHANG HENGRONG, SONG ZIHONG, LI XINHAO, LI QIANMIN, WANG ZHUOYUE, WANG YUEJING, BAN SHIXUE, HUANG RUYUN
Принадлежит:

The invention discloses a lightning invasion point positioning method and system based on an isolation lightning protection device, and the method comprises the steps: arranging the isolation lightning protection device on an overhead line according to a preset distance, and enabling the isolation lightning protection device to comprise a monitoring unit, a current mutual inductance unit, and a time synchronization unit; obtaining the earth current of each phase of each isolation lightning protection device, and carrying out the synchronous sampling of the earth current of each phase; according to a synchronous sampling result, abnormal parameters of the isolation lightning protection device are determined, and whether lightning invasion is abnormal is judged; and the lightning invasion position is positioned according to the abnormity occurrence time and the lightning wave propagation time. According to the method, the function of the isolation lightning protection device is expanded, ...

Подробнее
Номер записи: 15
26-05-2023 дата публикации

Load identification method and device

Номер: CN116169665A
Автор: JIN XIN, XIAO XIAOBING, LI YUE, CAI YONGXIANG, HUANG BOYANG, FENG JUNHAO, FU YU, XIAO YONG, HE XIAOMENG, WANG YANG, WANG MIAN, PAN TINGZHE, ZHENG YOUZHUO, LIU ANJIANG, ZHANG YANG, FANG YANG, ZHOU XIAODONG, KO JEONG-HO, HAO SHUQING, TANG WEI, ZHANG MENG, ZHANG HAN, LONG QIUFENG, HE XINYI, MIAO YU, WANG ZUFENG, WU CONGCONG, ZHANG HENGRONG
Принадлежит:

The invention relates to the technical field of real-time monitoring and intelligent regulation and control of a power system, and discloses a load identification method and device, which can effectively monitor bidirectional electric energy information of a user side by developing the load identification device, and has self-management and terminal identification functions. Using types and conditions of the household appliances can be distinguished on a user side, the service life of the electric meter can be prolonged, and when abnormal conditions are found, timely communication and alarm are carried out to wait for maintenance. Meanwhile, the invention provides a terminal and cloud combined load identification method which can effectively identify the types of household appliances, control the power generation condition of distributed energy and the power supply condition of a power grid according to the use condition of the household appliances, and understand the power utilization ...

Подробнее
Номер записи: 16
11-07-2023 дата публикации

Photovoltaic balanced output method based on time sequence prediction and distributed secondary control

Номер: CN116417984A
Автор: XIAO XIAOBING, JIN XIN, LI YUE, HUANG BOYANG, CAI YONGXIANG, FENG JUNHAO, FU YU, XIAO YONG, HE XIAOMENG, WANG YANG, PAN TINGZHE, FANG YANG, ZHOU XIAODONG, LIU ANJIANG, KO JEONG-HO, ZHENG YOUZHUO, ZHANG YANG, HAO SHUQING, LONG QIUFENG, HE XINYI, MIAO YU, WANG ZUFENG, WU CONGCONG, ZHANG HENGRONG, WANG ZHUOYUE, LI QIANMIN, LI XINHAO, SONG ZIHONG, KIM KYOUNG-WON, LIU BIN, XU XIUYUAN, LI HUAPENG, HU RONG, KONG XIANGLUN
Принадлежит:

The invention discloses a photovoltaic balanced output method based on time sequence prediction and distributed secondary control. The method comprises the following steps: collecting current data, predicting maximum output, and carrying out data processing to obtain a smooth photovoltaic panel maximum output predicted value; updating the droop coefficient and the virtual voltage drop according to the maximum output predicted value; exchanging control signals with neighbors, and calculating to obtain secondary control signals through interaction information and virtual voltage drop; and applying the secondary control signal to the secondary control to obtain a reference signal sent to the primary control, and applying droop control to complete balanced output of the photovoltaic panel. The problem of unbalanced output of the photovoltaic panels is solved, a hierarchical control thought is adopted, so that the ratio of the output power of each photovoltaic panel to the maximum output power ...

Подробнее
Номер записи: 17
01-08-2023 дата публикации

Regular interpretable power voltage stability evaluation method and system

Номер: CN116522753A
Автор: CAI YONGXIANG, XIAO XIAOBING, XIAO YONG, LI YUE, JIN XIN, FU YU, HUANG BOYANG, HE XIAOMENG, PAN TINGZHE, FANG YANG, WANG YANG, ZHENG YOUZHUO, ZHANG YANG, LIU ANJIANG, XIONG NAN, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, TANG XUEYONG, SONG ZIHONG, YE YUANHONG, DONG WU, WANG YINGSHU, WANG ZHUOYUE, WANG ZUFENG
Принадлежит:

The invention provides a power voltage stability evaluation method with rule interpretability, and the method comprises the steps: regarding a power voltage stability evaluation problem as a classification problem containing multiple feature quantities, dividing the voltage stability state of power, and carrying out the selection of the feature quantities based on a participation factor analysis technology and a machine learning algorithm. Establishing a power voltage stability evaluation model based on a decision tree under a C4.5 algorithm, and extracting a voltage stability evaluation model; according to the method, the calculation speed can be greatly improved, an objective evaluation result can be provided for system operation and maintenance personnel, a clear and understandable evaluation rule is provided, and the automation and intelligence level of dispatching operation can be improved.

Подробнее
Номер записи: 18
12-05-2023 дата публикации

Voltage out-of-limit risk assessment method based on analytic probabilistic power flow

Номер: CN116109134A
Автор: FU YU, LI YUE, BAI HAO, CAI YONGXIANG, LI WEI, XIAO XIAOBING, LIU TONG, WANG YANG, LIU ANJIANG, KUMAKUSU, FANG YANG, BIN FENG, ZHENG YOUZHUO, HAO SHUQING, MIAO YU, XU JIN, ZHANG YANG, REN JIAKUAN, LI XINHAO, ZHANG HENGRONG, WANG ZUFENG, LI QIANMIN
Принадлежит:

The invention discloses a voltage out-of-limit risk assessment method based on analytic probabilistic power flow. The method comprises the following steps: acquiring historical data of an injection power prediction value and a prediction error; modeling the conditional probability distribution of the prediction error of the node injection power, and quantifying the uncertainty of the injection power of each node of the power distribution network; obtaining a probability density function of the node voltage amplitude; judging whether the node belongs to a voltage out-of-limit high-risk node or not; outputting the probability density curve of the voltage amplitude of each node at each moment, and evaluating the voltage out-of-limit risk; a probabilistic load flow calculation method of an active power distribution network is researched, an active power distribution network voltage second-order approximation probability evaluation method based on an analytic probabilistic load flow method is ...

Подробнее
Номер записи: 19
03-09-2008 дата публикации

Improved large diameter air reverse circulation drill bit structure

Номер: CN0101255783A
Автор: HAO SHUQING, SHUQING HAO
Принадлежит:

The present invention provides an improved large-diameter air reverse circulation drill structure. An internal layer bottom jet orifice and an external layer bottom jet orifice are arranged on bottom of drill. Furthermore, one end hatch of the inner layer bottom jet orifice is arranged on shoulder of drill, and the export of inner layer bottom jet orifice is placed on diffusion confusion groove on bottom of drill, the center line of export and center channels axes forms an angle downwards. One hatch of external layer bottom jet orifice is arranged on tyre below drill, the other end is arranged on diffusion confusion groove on bottom of drill, the center line of hatch and center channels axes forms an angle upwards whose range of 0 degree C to 45 degree C. The present invention makes the large-diameter drill drilling in reverse circulation, can cool drill boundary tooth to prolong service life of drill in good application effect, and resolve difficulty technique problem that the large-diameter ...

Подробнее
Номер записи: 20
09-06-2023 дата публикации

Station area power distribution network state monitoring method based on data fusion analysis

Номер: CN116247802A
Автор: LI YUE, XIAO XIAOBING, CAI YONGXIANG, JIN XIN, HUANG BOYANG, FU YU, XIAO YONG, HE XIAOMENG, WANG YANG, WANG MIAN, ZHENG YOUZHUO, LIU ANJIANG, ZHANG YANG, FANG YANG, HAO SHUQING, TANG WEI, ZHANG MENG, LONG QIUFENG, HE XINYI, ZHANG HENGRONG, MIAO YU, SONG ZIHONG, WANG ZHUOYUE
Принадлежит:

The invention discloses a transformer area power distribution network state monitoring method based on data fusion analysis. The transformer area power distribution network state monitoring method comprises the steps of performing selection and related processing on original data uploaded by data acquisition equipment; expanding the electrical characterization quantity of a single time period in space in time and space, and fusing the electrical characterization quantity into a high-dimensional space-time comprehensive characterization quantity; an MDS dimension reduction method is adopted to process the high-dimensional space-time comprehensive characterization quantity, abnormal point detection is carried out on the space-time comprehensive characterization quantity after dimension reduction, and the state of the power grid is marked online; and judging the operation state of the power grid according to a data analysis result and performing corresponding processing. According to the transformer ...

Подробнее
Номер записи: 21
04-04-2023 дата публикации

Energy storage prefabricated cabin with data acquisition function and system thereof

Номер: CN115912664A
Автор: LI YUE, XIAO XIAOBING, JIN XIN, CAI YONGXIANG, XIAO YONG, HUANG BOYANG, FU YU, HE XIAOMENG, FENG JUNHAO, WANG YANG, PAN TINGZHE, FANG YANG, ZHOU XIAODONG, LIU ANJIANG, KO JEONG-HO, ZHENG YOUZHUO, ZHANG YANG, HAO SHUQING, HE XINYI, MIAO YU, LONG QIUFENG, WANG ZUFENG, WANG ZHUOYUE, ZHANG HENGRONG, LI QIANMIN, SONG ZIHONG, WANG YINGSHU, KIM KYOUNG-WON, LIU BIN, XU XIUYUAN, LI HUAPENG, XU JIN
Принадлежит:

The energy storage prefabricated cabin with the data acquisition function comprises a prefabricated cabin cold room, a prefabricated cabin hot room is arranged at the top of the prefabricated cabin cold room, a solar photovoltaic panel and an infrared temperature and humidity detector are installed at the top of the prefabricated cabin cold room, and a power supply and control module is arranged on one side of the prefabricated cabin cold room. And a storage unit is fixed in the prefabricated cabin cold room. According to the energy storage prefabricated cabin with the data acquisition function and the system thereof, through device structural design, the energy storage unit and the real-time working environment of the environment where the energy storage unit is located can be acquired, and available data is provided for evaluating the working state of the energy storage unit and even applying the data to multi-source data isomerism and future new energy load output prediction. A low-energy-consumption ...

Подробнее
Номер записи: 22
11-04-2023 дата публикации

Distributed energy situation awareness terminal optimization stationing method and device

Номер: CN115954935A
Автор: ZHANG HENGRONG, ZHANG RUIFENG, WU PENG, XIAO XIAOBING, WANG ZHUOYUE, LI YUE, ZHOU ZHONGQIANG, LONG SHAN, ZHOU ZHI, TAN HAI, HE XIAOMENG, HE XINYI, KUMAKUSU, YU LEI, LIN XINHAO, LIU YINLIANG, LI XINHAO, MIAO YU, LI QIANMIN, SONG ZIHONG, HAO SHUQING, LIU ANJIANG, WANG YANG, ZHENG YOUZHUO, LUO YUANLAI, ZHANG YANG
Принадлежит:

The invention discloses a distributed energy situation awareness terminal optimization stationing method. The method comprises the following steps: determining upper and lower bounds of a prediction error based on predicted power and actual power of a load in combination with normal distribution characteristics; establishing a power grid power flow model based on the prediction error; decoupling an active power and reactive power relation through a power grid power flow model, and respectively solving the similarity of voltage and reactive power based on curve classification of voltage and active power; and respectively establishing similarity matrixes according to the voltage similarity and the reactive similarity, wherein the intersection of the similarity matrixes is the number of the situation awareness terminals needing to be deployed. Starting from the time-space correlation, the global situation awareness terminal of the power grid is realized by using the voltage and power correlation ...

Подробнее
Номер записи: 23
04-04-2023 дата публикации

Information processing method and device for power distribution measurement and control terminal equipment

Номер: CN115904718A
Автор: XIAO XIAOBING, CAI YONGXIANG, DING YUJIE, ZHANG RUIFENG, ZHAO YUANLIANG, FU YU, HE XIAOMENG, LI YUE, XU XIAODONG, TAN BIN, QIU WEIJIE, MA XIN, LIU CHANG, XING ZHAOSEN, TIAN HAO, LIN SHUNSHENG, SHI HUJUN, LONG GAOYI, HE XINYI, WU PENG, ZHENG YOUZHUO, LIU ANJIANG, WANG YANG, ZHANG YANG, HAO SHUQING, MIAO YU, SONG ZIHONG, KIM KYOUNG-WON, WANG YINGSHU
Принадлежит:

The invention discloses an information processing method for a power distribution measurement and control terminal device, and the method comprises the steps: constructing a power distribution measurement and control terminal model according to a reliability constraint corresponding to a power distribution measurement and control terminal and a preset optimization target; acquiring equipment information of the topological structure of the power distribution network, and determining topological structure information of the power distribution network through a preset power distribution network topological structure analysis algorithm; determining application topological information corresponding to the power distribution network based on the obtained power distribution measurement and control terminal model and topological structure information of the power distribution network and a pre-obtained communication address of the power distribution measurement and control terminal; and monitoring ...

Подробнее
Номер записи: 24
01-08-2023 дата публикации

Distribution line lightning distributed monitoring networking method

Номер: CN116527533A
Автор: LI YUE, HE XIAOMENG, XIAO XIAOBING, CAI YONGXIANG, FU YU, LIU ANJIANG, HAO SHUQING, LI HUAPENG, WANG YANG, LU CAIJIANG, XIONG NAN, ZHANG YANG, ZHENG YOUZHUO, DOU CHEN, LONG QIUFENG, CHEN CHENG, MIAO YU, HE XINYI, WANG YINGSHU, GU TINGYUN, DAI QIJI, LI XINHAO, ZHANG HENGRONG, SONG ZIHONG, LI QIANMIN, WANG ZHUOYUE, KIM GYEONG-WON, KONG XIANGLUN
Принадлежит:

The invention discloses a distribution line thunder and lightning distributed monitoring networking method, which comprises the steps that acquisition nodes are selected along a distribution line, the nodes comprise an A-phase circuit, a B-phase circuit and a C-phase circuit, each node is provided with a terminal device, the three-phase circuits communicate with a communication module, and the communication module comprises a zigbee communication module and a LoRa communication module; a LoRa communication module is deployed in the middle of a power distribution line and communicates with 4G DTU equipment through RS232; each communication module is configured with a unique equipment ID, an MAC address and a network ID, secondary related parameters are obtained after the equipment accesses the network, the equipment accesses the network and makes a judgment, and if no problem is confirmed, an ID address is allocated to each node; during data transmission, each node needs to comply with related ...

Подробнее
Номер записи: 25
07-04-2023 дата публикации

Lightning current information management method, system and device for power distribution network and storage medium

Номер: CN115934709A
Автор: LIAO MINCHUAN, XIAO XIAOBING, FENG RUIFA, LIU ANJIANG, LIU GANG, FU YU, QU LU, CAI YONGXIANG, QI RUIHAN, LI YUE, ZHANG YI, HAO SHUQING, HU SHANGMAO, WANG YANG, HU TAISHAN, ZHENG YOUZHUO, MEI QI, HE XIAOMENG, LIU HAO, YAO CHENG, LI LONGGUI, MIAO YU, HE XINYI
Принадлежит:

The invention discloses a power distribution network lightning current information management method, system and device and a storage medium, and the method comprises the steps: displaying a function menu in a first interface, and enabling the function menu to comprise first function information, second function information, third function information, fourth function information, fifth function information and sixth function information; multiple operation functions for lightning current information are involved, and the lightning current information management efficiency of the power distribution network is improved; according to the lightning current information management method and system, the true cyclic variables are added when the input function, the query function and the deletion function are executed, so that system crash caused by wrong information input when a large amount of data is processed at the same time is avoided, the reliability of lightning current information management ...

Подробнее
Номер записи: 26
08-08-2023 дата публикации

Power distribution network multi-time scale optimization scheduling method considering grid connection of optical storage users

Номер: CN116565874A
Автор: XIAO YONG, XIAO XIAOBING, LI YUE, CAI YONGXIANG, JIN XIN, FU YU, HUANG BOYANG, HE XIAOMENG, PAN TINGZHE, FANG YANG, WANG YANG, ZHENG YOUZHUO, ZHANG YANG, LIU ANJIANG, KUMAKUSU, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, TANG XUEYONG, SONG ZIHONG, YE YUANHONG, DONG WU, WANG YINGSHU, WANG ZHUOYUE, ZHANG HENGRONG, DAI QIJI, LI QIANMIN, LI XINHAO
Принадлежит:

The invention discloses a power distribution network multi-time scale optimization scheduling method considering optical storage user grid connection, and the method comprises the steps: obtaining the branch impedance information of a power distribution network, and the number and position information of an adjustable power supply according to the structure of the power distribution network; obtaining output prediction data of each distributed photovoltaic power supply of the power distribution network and load prediction data of each node of the power distribution network on the next day; dividing day-ahead and intra-day scheduling periods, and obtaining output data of each distributed photovoltaic power supply of the power distribution network and load data of each node of the power distribution network in each scheduling period; establishing a day-ahead scheduling optimization model considering the operation economy by taking the lowest operation cost of the power distribution network ...

Подробнее
Номер записи: 27
02-05-2023 дата публикации

Method for controlling and setting voltage of distributed new energy transformer area

Номер: CN116054178A
Автор: HE XIAOMENG, XIAO XIAOBING, LI YUE, CAI YONGXIANG, JIN XIN, HUANG BOYANG, FU YU, XIAO YONG, WANG YANG, WANG MIAN, ZHENG YOUZHUO, LIU ANJIANG, ZHANG YANG, FANG YANG, HAO SHUQING, TANG WEI, ZHANG MENG, LONG QIUFENG, HE XINYI, ZHANG HENGRONG, MIAO YU, SONG ZIHONG, LI QIANMIN
Принадлежит:

The invention discloses a distributed new energy transformer area voltage control setting method. The method comprises the following steps: collecting user end voltage; evaluating the reactive power capacity of the current transformer area, and performing reactive power control on the inverter when the reactive power capacity is sufficient; when the reactive power capacity is not sufficient, all line deviation values in the transformer area are evaluated; when the deviation is small, the inverter and the transformer perform cooperative control, and when the deviation is large, the inverter performs reactive power control; and judging an over-limit condition and carrying out voltage control. According to the distributed new energy transformer area voltage control setting method provided by the invention, the transformer area reactive power adequacy and voltage regulation demand diversification of each line in the transformer area are evaluated, so that the over-limit voltage within +/-8V ...

Подробнее
Номер записи: 28
01-08-2023 дата публикации

Photovoltaic grid-connected system fault analysis method based on coordinate transformation and clustering analysis

Номер: CN116522588A
Автор: LI YUE, XIAO XIAOBING, XIAO YONG, CAI YONGXIANG, JIN XIN, HUANG BOYANG, FU YU, PAN TINGZHE, HE XIAOMENG, FANG YANG, WANG YANG, ZHENG YOUZHUO, ZHANG YANG, LIU ANJIANG, XIONG NAN, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, TANG XUEYONG, YE YUANHONG, DONG WU, WANG YINGSHU, WANG ZHUOYUE, ZHANG HENGRONG, DAI QIJI, LI QIANMIN, LI XINHAO, SONG ZIHONG
Принадлежит:

The invention discloses a photovoltaic grid-connected system fault analysis method based on coordinate transformation and clustering analysis. The method comprises the following steps: building a photovoltaic grid-connected inverter system simulation model according to possible fault data simulated by a simulation platform, and obtaining fault data of three types of faults through the photovoltaic grid-connected inverter system simulation model; performing coordinate transformation on the grid-connected current under various faults according to the fault data to obtain time domain characteristic values under different types of faults; converting the time domain characteristic value into a quadrature-direct axis current amplitude, and taking the quadrature-direct axis current amplitude as a fault characteristic value after the quadrature-direct axis current amplitude corresponds to the fault type; fault classification is realized through the Euclidean distance between the clustering center ...

Подробнее
Номер записи: 29
04-04-2023 дата публикации

Multi-cavity arc extinguishing gap capable of intelligently counting action times

Номер: CN115912060A
Автор: CAI YONGXIANG, XIAO XIAOBING, LI YUE, FU YU, LI HUAPENG, HE XIAOMENG, LIU ANJIANG, ZHANG YANG, ZHOU HAI, YUAN TAO, YANG ZHONG, WU DI, HUANG ZHIQING, ZHANG RUIFENG, WU CONGCONG, HAO SHUQING, KUMAKUSU, CHEN YU, ZHENG YOUZHUO, WANG YANG, DOU CHEN, TANG XUEYONG, WANG YINGSHU, LONG QIUFENG, MIAO YU, HE XINYI, KIM KYOUNG-WON, LONG QIN, HE HONGLIU, ZHANG HENGRONG, WU PENG, LI QIANMIN, WANG ZHUOYUE, BAN SHIXUE, HUANG RUYUN
Принадлежит:

The invention discloses a multi-cavity arc extinguishing gap capable of intelligently counting the number of actions, which comprises a high-voltage electrode, a distribution network power transmission line and a pin type insulator, and is characterized in that the high-voltage electrode is arranged on the distribution network power transmission line and is connected with the pin type insulator in parallel; the upper part of the multi-cavity arc extinguishing unit is of a multi-cavity structure which is composed of a plurality of layers of annular structures and has an arc extinguishing function; and the arc quenching action frequency statistical unit is arranged at the lower part of the multi-cavity arc extinguishing unit and comprises an energy supply power supply, a fault current monitoring module, a data acquisition controller and a data storage and communication module. The device has the beneficial effects that the device arc quenching action times and the device arc quenching time ...

Подробнее
Номер записи: 30
26-05-2023 дата публикации

Thermoelectric energy conversion device for photovoltaic panel on roof of transformer substation

Номер: CN116169951A
Автор: XIAO XIAOBING, LI YUE, XIAO YONG, CAI YONGXIANG, JIN XIN, HUANG BOYANG, FU YU, PAN TINGZHE, HE XIAOMENG, FANG YANG, WANG YANG, ZHENG YOUZHUO, ZHANG YANG, LIU ANJIANG, KUMAKUSU, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, WANG ZHUOYUE, ZHANG HENGRONG, DAI QIJI, LI QIANMIN, LI XINHAO, SONG ZIHONG
Принадлежит:

A substation roof photovoltaic panel thermoelectric energy conversion device disclosed by the present invention comprises a heat energy unit, the heat energy unit comprises a photovoltaic assembly and a liquid cooling assembly arranged at the inner side of the photovoltaic assembly, and the first conversion unit comprises a conveying assembly arranged on the liquid cooling assembly and a valve assembly arranged on the conveying assembly. The first conversion unit comprises a conveying assembly and a movable assembly arranged on the conveying assembly, and the second conversion unit comprises a rotating wheel arranged on the movable assembly and a power generation assembly arranged on the rotating wheel, so that the photovoltaic module can be prevented from working at ultra-high temperature, the working efficiency of a photovoltaic panel is improved, and the probability that components of the photovoltaic module are damaged is reduced; collected heat energy is converted into available electric ...

Подробнее
Номер записи: 31
30-05-2023 дата публикации

Space-time coordination optimization scheduling method for low-voltage AC/DC hybrid power distribution network

Номер: CN116191431A
Автор: LI YUE, FU YU, LI WEI, XIAO XIAOBING, CAI YONGXIANG, BAI HAO, WANG YANG, LIU TONG, LIU ANJIANG, KUMAKUSU, FANG YANG, BIN FENG, ZHENG YOUZHUO, HAO SHUQING, MIAO YU, XU JIN, ZHANG YANG, REN JIAKUAN, LI XINHAO, WANG ZUFENG, ZHANG HENGRONG, HE XIAOMENG, BAN SHIXUE, SONG ZIHONG
Принадлежит:

The invention belongs to the technical field of low-voltage alternating-current and direct-current hybrid power distribution, and discloses a low-voltage alternating-current and direct-current hybrid power distribution network space-time coordination optimization scheduling method, which comprises the following steps of: establishing a voltage source converter and energy storage coordination optimization scheduling model with minimum network loss and three-phase unbalance degree as targets; the space-time coordination optimization method of the energy storage and voltage source converter is provided, on one hand, the blank that most of existing researches do not consider the three-phase imbalance problem is filled, and on the other hand, the power time scheduling capability of the energy storage and the power space scheduling capability of the voltage source converter are fully utilized; and the photovoltaic absorption capability of the low-voltage AC/DC hybrid power distribution network ...

Подробнее
Номер записи: 32
09-05-2023 дата публикации

Distributed power supply distribution network multi-source heterogeneous data acquisition and fusion method and system

Номер: CN116089898A
Автор: XIAO XIAOBING, LI YUE, CAI YONGXIANG, JIN XIN, HUANG BOYANG, FU YU, XIAO YONG, HE XIAOMENG, WANG YANG, WANG MIAN, ZHENG YOUZHUO, LIU ANJIANG, ZHANG YANG, FANG YANG, HAO SHUQING, TANG WEI, ZHANG MENG, LONG QIUFENG, HE XINYI, ZHANG HENGRONG, MIAO YU, SONG ZIHONG, WANG ZHUOYUE
Принадлежит:

The invention discloses a method and a system for collecting and fusing multi-source heterogeneous data of a distributed power distribution network. The method comprises the following steps of: dividing the multi-source heterogeneous data into structured data, semi-structured data and unstructured data according to a structured degree; preprocessing the structured data by adopting a key value information matching mode, and further processing by adopting a key value direct extraction mode; preprocessing the semi-structured data in a homologous data association mode, and further processing the semi-structured data in an information mark extraction mode; pre-processing the unstructured data by adopting a stream data sampling matrix, and further processing by adopting a convolutional feature extraction mode; and correcting and storing the processed structured data, semi-structured data and unstructured data. According to the method, structured processing of multi-source heterogeneous data with ...

Подробнее
Номер записи: 33
14-07-2023 дата публикации

Low-voltage distribution area direct current structure and converter control method thereof

Номер: CN116436064A
Автор: FU YU, CAI YONGXIANG, BAI HAO, XIAO XIAOBING, LI YUE, LI WEI, WANG YANG, LIU TONG, LIU ANJIANG, KUMAKUSU, FANG YANG, BIN FENG, ZHENG YOUZHUO, HAO SHUQING, MIAO YU, XU JIN, ZHANG YANG, REN JIAKUAN, LI XINHAO, ZHANG HENGRONG, HE XIAOMENG, SONG ZIHONG, BAN SHIXUE
Принадлежит:

The invention discloses a low-voltage distribution area direct current structure and a converter control method thereof, and the direct current structure comprises an in-area parallel direct current structure and an in-area direct current interconnection structure. In a parallel direct current structure in a transformer area, a first direct current line is added, two ends of the first direct current line are connected in parallel with two ends of an original alternating current line, and the first direct current line is used for mixing alternating current and direct current to end users for power supply; in the inter-station direct current interconnection structure, a second direct current line is added, and the two ends of the second direct current line are connected with the head ends of the two adjacent stations respectively and used for transferring power between the two interconnection stations. The parallel direct current line structure in the transformer area does not influence the ...

Подробнее
Номер записи: 34
04-08-2023 дата публикации

Distributed power supply access capacity planning method

Номер: CN116545006A
Автор: LI YUE, XIAO XIAOBING, XIAO YONG, CAI YONGXIANG, FU YU, JIN XIN, HUANG BOYANG, HE XIAOMENG, PAN TINGZHE, FANG YANG, WANG YANG, ZHENG YOUZHUO, ZHANG YANG, LIU ANJIANG, KUMAKUSU, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, TANG XUEYONG, SONG ZIHONG, YE YUANHONG, DONG WU, WANG YINGSHU, WANG ZHUOYUE, ZHANG HENGRONG, DAI QIJI, LI QIANMIN, LI XINHAO
Принадлежит:

The invention discloses a distributed power supply admission capacity planning method, which comprises the following steps of: establishing a maximum admission capacity model according to load and line parameters of a power grid; calculating power flow by adopting a sequence component method, judging whether voltage constraint is met or not, and performing elimination; performing proportional inheritance on the individuals meeting the constraint, and crossing combinations obtained by proportional inheritance; and performing mutation operation after crossing is finished, entering a cyclic step of the genetic algorithm after a new filial generation is obtained, and outputting an optimal value after optimization is finished, namely the maximum penetration capacity of each DG in the power distribution network and a corresponding power flow result. According to the method, the genetic algorithm and the sequence component power flow algorithm are combined, so that the convergence is better and ...

Подробнее
Номер записи: 35
05-05-2023 дата публикации

Photovoltaic power ultra-short-term prediction method and system

Номер: CN116070509A
Автор: XIAO XIAOBING, LI YUE, CAI YONGXIANG, XIAO YONG, FU YU, JIN XIN, HUANG BOYANG, PAN TINGZHE, HE XIAOMENG, WANG YANG, FANG YANG, ZHENG YOUZHUO, ZHANG YANG, LIU ANJIANG, KUMAKUSU, HAO SHUQING, HE XINYI, MIAO YU, DOU CHEN, ZHANG HENGRONG, LI QIANMIN, DAI QIJI, LI XINHAO, SONG ZIHONG
Принадлежит:

The invention discloses a photovoltaic power ultra-short-term prediction method and system, and the method comprises the steps: obtaining a photovoltaic power sequence of a similar power station according to the distribution condition of a photovoltaic power station; determining a highly correlated power station of the target power station by combining the photovoltaic power sequence of the similar power station and the photovoltaic power sequence of the power station to be predicted with grey correlation analysis; dynamically capturing the correlation between each characteristic variable of the target photovoltaic power station at the to-be-predicted moment and the photovoltaic power by introducing an attention mechanism; and dynamically capturing the correlation between the to-be-predicted moment and each historical moment by using a multi-layer nested space-time network, and further optimizing the prediction result by considering the change relation of the photovoltaic power along with ...

Подробнее
Номер записи: 36
14-04-2023 дата публикации

Power distribution network and traffic network cooperative first-aid repair optimization method considering extreme disaster influence

Номер: CN115965359A
Автор: FU YU, BAI HAO, LI YUE, LI WEI, CAI YONGXIANG, XIAO XIAOBING, LIU TONG, WANG YANG, LIU ANJIANG, KUMAKUSU, FANG YANG, BIN FENG, ZHENG YOUZHUO, HAO SHUQING, MIAO YU, XU JIN, ZHANG YANG, REN JIAKUAN, LI XINHAO, ZHANG HENGRONG, WANG ZUFENG, BAN SHIXUE
Принадлежит:

The invention discloses a power distribution network and traffic network cooperative first-aid repair optimization method considering the influence of an extreme disaster. The method comprises the following steps: collecting information of a power distribution network and a traffic network after the influence of the extreme disaster; establishing a recovery maximization model of the power distribution network and the traffic network; modeling the recovery process of the power grid and the traffic network; virtual nodes are added, and the network is reconstructed; and performing power grid flow constraint on the reconstructed network, and finally obtaining a power distribution network and traffic network cooperative first-aid repair optimization method by using an objective function of a maximization model. The invention provides an optimization method for cooperative first-aid repair of a power distribution network and a traffic network. Repair of the power distribution network and repair ...

Подробнее
Номер записи: 37