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 6. Отображено 6.
04-04-2023 дата публикации

Integrated management method and system for ensemble forecast meteorological resources

Номер: CN115907268A
Автор: SHAN RUIQING, NIU JITAO, PEI PEI, YUAN LIANG, MA XIAOJIU, CHAI XUZHENG, GU QINGFA, SUN XIN, TENG WEIJUN
Принадлежит:

The invention provides an ensemble forecast meteorological resource comprehensive management method and system, and relates to the technical field of meteorological resource management, and the method comprises the steps: connecting a meteorological data query system of a target management region, and obtaining historical meteorological data; performing feature analysis according to the historical meteorological data to obtain regional meteorological features; based on the regional meteorological features, dividing the target management region to obtain a plurality of sub-regions; obtaining demand meteorological characteristics based on a real-time management target; performing matching analysis on the regional meteorological characteristics and the demand meteorological characteristics, and outputting a plurality of meteorological matching degrees; according to the plurality of meteorological matching degrees, carrying out region identification on the plurality of sub-regions, and outputting ...

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

Method and device for suppressing commutation failure of LCC-VSC hybrid direct current at receiving end

Номер: CN116565931A
Автор: YU LINLIN, WANG ZHIWEI, JIA PENG, TANG XIAOJUN, SI RUIHUA, XIE YAN, HAO YUANZHAO, LI LIXIN, MAO YUBIN, JIANG XIAOLIANG, GUO CHANGHUI, HUO QIDI, CHENG YUMING, LI TIANTIAN, QIN JUNWEI, TIAN CHUNSUN, ZHU SHAOXUAN, ZHANG LIHUA, SHAO HONGBO, YAN XINTONG, WANG CHUANJIE, GU QINGFA
Принадлежит:

The invention discloses a method and a device for suppressing a commutation failure of a hybrid direct current with a receiving end being an LCC-VSC (Low Current Converter-Voltage Source Converter). The method comprises the following steps: when a short-circuit fault occurs in a receiving-end alternating-current power grid or the voltage drop of the power grid occurs, calculating the voltage drop of an alternating-current conversion bus connected with the LCC according to the detected voltage of the alternating-current conversion bus; switching the reactive power control mode of the VSC to reactive power clamping control under the condition that the voltage drop of the alternating current conversion bus is greater than a preset voltage difference threshold value; and under the condition that the voltage drop of the alternating current conversion bus is smaller than or equal to the voltage difference threshold value, the reactive power control mode of the VSC is kept unchanged.

Подробнее
Номер записи: 2
06-06-2023 дата публикации

Random optimization scheduling method and system for determining wind power operation reserve

Номер: CN116231755A
Автор: TENG WEIJUN, LIU YANG, XIE BOYU, LI CHAOHUI, ZHU QUANSHENG, SUN XIN, ZHANG YAFEI, GU QINGFA, ZHANG ZIYU
Принадлежит:

The invention discloses a stochastic optimization scheduling method and system for determining wind power operation reserve, and the method comprises the steps: collecting actual operation data and prediction data of a wind turbine generator, and building an error probability distribution function of intra-day wind power prediction power based on kernel density estimation; determining the credibility of the intra-day wind power prediction power by using an inverse function of the error probability distribution function and a set prediction power accuracy rate probability; taking the output of the wind turbine generator greater than the credibility as the operation reserve capacity provided by the wind power; screening out a key scene set from the day wind power output scene set by using a full-scene feasible random optimization method; aiming at the key scene set, taking minimization of the operation cost of a power system as a target function, and establishing a unit combination model ...

Подробнее
Номер записи: 3
04-04-2023 дата публикации

Load power real-time control method considering voltage out-of-limit

Номер: CN115912515A
Автор: XIE BOYU, LIU YANG, LI QIONGLIN, WANG HUA, SUN XIN, TENG WEIJUN, ZHANG YAFEI, LI CHAOHUI, YANG HAIJING, GU QINGFA, XU JIAN, LIAO SIYANG, KE DEPING, SUN YUANZHANG
Принадлежит:

The invention provides a load power real-time control method considering voltage out-of-limit. The load power real-time control method comprises the following steps: S1, determining a feeder voltage target value; s2, a photovoltaic reactive power-voltage state space model, a fan reactive power-voltage state space model and a real-time voltage regulator reactive power-voltage state space model are established, a system reactive power-voltage state space model is established in combination with a system, and a feeder voltage prediction model is obtained in combination with voltage sensitivity; s3, constructing and solving a feeder load power control rolling optimization model; s4, executing an optimization result, and performing feeder load power feedback correction; and S5, judging a load power control result, and exiting optimization or repeating the step S2. According to the method provided by the invention, the system feeder voltage prediction model is constructed, real-time correction ...

Подробнее
Номер записи: 4
14-04-2023 дата публикации

Evaluation method and system for improving new energy bearing capacity of regional power grid by considering energy storage

Номер: CN115964843A
Автор: TENG WEIJUN, LIU YANG, LIU HONGLING, YANG HAIJING, ZHANG YAFEI, SUN XIN, GAO ZE, GU QINGFA, LIU CHAO
Принадлежит:

The invention discloses an evaluation method and system for improving the new energy bearing capacity of a regional power grid by considering energy storage, and provides a method for evaluating the new energy bearing capacity of the regional power grid based on a stochastic programming theory and dynamic risk management under the condition of considering energy storage, and the method comprises the following steps: obtaining the original data of the regional power grid; analyzing new energy output characteristics, and constructing a new energy output characteristic index system; a new energy bearing capacity decision model based on a stochastic programming theory is established, a current power grid new energy bearing capacity probability distribution result is evaluated, and decision guidance is provided for power grid dispatching; constraint conditions such as load increase, thermal power minimum output characteristics, delivery channels and the like are considered, a new energy bearing ...

Подробнее
Номер записи: 5
23-06-2023 дата публикации

Asymmetric voltage active support method based on residual reactive capacity of micro-grid group

Номер: CN116316658A
Автор: LIU YANG, CHAI XUZHENG, SUN XIN, WANG JINGGANG, LI CHAOHUI, TENG WEIJUN, GU QINGFA
Принадлежит:

The invention belongs to the technical field of microgrid operation control, and particularly relates to an asymmetric voltage active support method based on the residual reactive power capacity of a microgrid group, which comprises reactive power support quantity calculation of the residual reactive power capacity of the microgrid group and active voltage control in consideration of an asymmetric fault. The reactive power support quantity calculation of the residual capacity of the micro-grid group adaptively calculates respective reactive power-voltage droop coefficients according to respective residual reactive power capacity of micro-grids in the group, and obtains the reactive power support quantity under the voltage situation through the positive sequence voltage of grid-connected points of the micro-grid group; according to the active voltage control considering the asymmetric fault, positive and negative sequence current reference values corresponding to the reactive support quantity ...

Подробнее
Номер записи: 6