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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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 39. Отображено 39.
23-06-2023 дата публикации

Method and device for calculating sound radiation efficiency of extra-high voltage shunt reactor

Номер: CN116295775A
Автор: WANG YANZHAO, REN JINGLI, ZHANG JIANGONG, LI YUAN, HU JINGZHU, XIE HUICHUN, ZHOU BING, NI YUAN, GAN ZHEYUAN, ZHAO JUN, LIU XINGFA
Принадлежит:

The invention discloses a method and a device for calculating sound radiation efficiency of an extra-high voltage shunt reactor. The method comprises the following steps: determining the vibration speed level of each vibration measuring point according to a pre-specified arrangement scheme of vibration measuring points and noise measuring points on the surface of the extra-high voltage shunt reactor, performing noise measurement on each noise measuring point by adopting a noise sensor, and determining the noise sound pressure level of each noise measuring point; respectively determining a first self-power spectral density function of each vibration measuring point and a second self-power spectral density function of each noise measuring point in each group through self-correlation functions of the vibration speed level and the noise sound pressure level; according to the first self-power spectral density function of each vibration measuring point in each group, calculating a third self-power ...

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Номер записи: 1
02-06-2023 дата публикации

Field planting method for low-altitude lamiophlomis rotata

Номер: CN116195474A
Автор: QIAO FENG, XIE HUICHUN, GENG GUIGONG, MA YONGGUI
Принадлежит:

The invention relates to the field of medicinal material planting, and particularly discloses a field planting method for low-altitude lamiophlomis rotata. The method comprises the steps of 1, seed selection; 2, land selection; 3, soil treatment; step 4, seed treatment; step 5, sowing; 6, field management. The planting method has the advantages that the germination rate of the lamiophlomis rotata seeds is increased, and the growth cycle is shortened.

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Номер записи: 2
04-04-2023 дата публикации

DC composite electric field calculation method and device, terminal and storage medium

Номер: CN115906546A
Автор: XU JILAI, LU YAO, ZHANG LIANG, LIU ZHENHUAN, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, LIU XINGFA, XIE HUICHUN, ZHANG YEMAO, LI NI, NI YUAN, ZHAO JUN, WANG YANZHAO, WAN HAO, LIAO ZHENGHAI, HE WEI, LIU HUAGANG, TENG ZIHAN, QI PENG, LU HAONAN
Принадлежит:

The invention discloses a direct-current synthetic electric field calculation method, and discloses a device, a terminal and a storage medium with the direct-current synthetic electric field calculation method, and the direct-current synthetic electric field calculation method can be used for calculating a synthetic electric field above a building near a direct-current power transmission line under the wind speed condition. The invention also provides a calculation method of the synthetic electric field above the building and a calculation method of the building wind field, and solves the vacancy that the situation above the building is rarely considered in the existing method.

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Номер записи: 3
14-04-2023 дата публикации

Simple signal power supply based on single-chip microcomputer and PWM waveform acquisition method

Номер: CN115963745A
Автор: LIU JIANBEN, ZHANG YEMAO, LI NI, NI YUAN, LU YAO, ZHANG JIANGONG, XIE HUICHUN, GAN ZHEYUAN, ZHAO JUN, LIU XINGFA, ZHOU BING, WANG YANZHAO, HU JINGZHU, LIU YAN, YU HUI, WAN HAO, LIU ZHENHUAN, HUANG RUI, CHEN YULONG, YU YAO, XU JILAI, TENG ZIHAN
Принадлежит:

The invention discloses a simple signal power supply based on a single-chip microcomputer and a PWM waveform acquisition method. The simple signal power supply comprises an input module, a power supply module, a control module, an output module and a display module. The input module, the power supply module, the output module and the display module are respectively connected with the control module; the input module is used for receiving an externally input working instruction and transmitting the working instruction to the control module; the control module is used for receiving the control instruction sent by the input module and outputting a corresponding PWM waveform to the output module according to the control instruction; the output module is used for amplifying the PWM waveform and filtering harmonic frequency; outputting the PWM waveform to a display module; the power supply module is used for supplying power to the simple signal power supply; and the display module is used for ...

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Номер записи: 4
02-07-2014 дата публикации

Electromagnetic environment protection management information platform for alternating-current and direct-current transmission and transformation project and management method

Номер: CN103903099A
Автор: LI NI, PEI CHUNMING, ZHANG YEMAO, WU XIONG, XIE HUICHUN, ZHANG JIANGONG, LIU XINGFA, ZHAO JUN
Принадлежит:

The invention relates to an electromagnetic environment protection management information platform for an alternating-current and direct-current transmission and transformation project and a management method. The electromagnetic environment protection management information platform comprises servers and workstations, wherein the servers and the workstations are used for environment protection information management, and are connected through the Ethernet. The workstations include a project tracking management workstation and an information popularization feedback workstation, and the servers include a project tracking management server and an information popularization feedback server. The project tracking management workstation is connected with the project tracking management server, and the information popularization feedback workstation is connected with the information popularization feedback server. The invention further provides the management method of the electromagnetic environment ...

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Номер записи: 5
28-10-2009 дата публикации

Shielding chamber cable grounding method

Номер: CN0101567525A
Автор: BAOQUAN WAN, XIONG WU, GUANGZHOU ZHANG, XIAOWU ZHANG, QIN WANG, HONG JIANG, HUICHUN XIE, WAN BAOQUAN, WU XIONG, ZHANG GUANGZHOU, ZHANG XIAOWU, WANG QIN, JIANG HONG, XIE HUICHUN
Принадлежит:

The invention relates to a shielding chamber cable grounding method which comprises the following steps: as for a cable entering into and exiting from a shielding chamber, a Roxtec EMC module is adopted to well connect a shielding layer of the cable and a reinforced steel structure of the shielding chamber, and the shielding layer of the cable and the reinforced steel structure of the shielding chamber are grounded together; a filter is additionally arranged between the shielding layer of the cable and a cable core for filtering out interference signals so as to partition electromagnetic energy inside and outside the shielding chamber caused by the entry and exit of the cable. According to the shielding principle of the shielding chamber, the invention analyzes factors affecting shielding effectiveness and conducts grounding method research and device development according to the structure of the cable entering into and exiting from the shielding chamber, thereby ensuring the shielding ...

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Номер записи: 6
16-07-2008 дата публикации

Method for appraising electromagnetic environment level of 1000KV ultrahigh voltage alternating current transmission lines

Номер: CN0101221202A
Автор: ZHANG GUANGZHOU, WU XIONG, ZHANG ZEPING, XIE HUICHUN, GUANGZHOU ZHANG, XIONG WU, ZEPING ZHANG, HUICHUN XIE
Принадлежит:

The invention relates to a method for evaluating the electromagnetic environment level of an AC transmission line with the extra-high voltage of 1000 kilovolts, which comprises evaluation factors, an evaluation range, an evaluation standard and a measurement method; the evaluation factors are power frequency electric field, power frequency magnetic field, radio interference and audible noise. The invention correctly grasps the characteristics of the electromagnetic environment of the current transmission line with voltage of 1000 kilovolts, thus providing a reasonable method for evaluating the electromagnetic environment level of the AC transmission line with the extra-high voltage of 1000 kilovolts, and further correctly standardizing the electromagnetic environment of a power transmission and transformation project with extra-high voltage and reasonably controlling the production cost of the project by means of the method.

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Номер записи: 7
27-06-2023 дата публикации

Radio frequency electromagnetic field radiation immunity evaluation method for wireless sensing equipment of transformer substation

Номер: CN116338328A
Автор: LIU XINGFA, GUO XINJU, LI YIFENG, ZHANG JIANGONG, GAN ZHEYUAN, YIN TING, YANG DAN, LU YAO, QI DAOKUN, TANG BO, HE WEI, ZHAO JUN, WANG YANZHAO, XIE HUICHUN, ZHANG YEMAO, LI NI, RIZONO, ZHOU BING, HU JINGZHU
Принадлежит:

The invention discloses a radio frequency electromagnetic field radiation immunity evaluation method for wireless sensing equipment of a transformer substation. The method comprises the following steps: calculating the maximum receiving power of wireless sensing equipment in a transformer substation according to the counted transmitting power of the wireless equipment in the transformer substation; determining the receiving electric field intensity of the wireless sensing equipment according to the counted modulation mode, frequency characteristic and maximum receiving power of the wireless equipment in the transformer substation; and evaluating the radio frequency electromagnetic field radiation anti-interference capability of the wireless sensing equipment according to the induced voltage generated by the received electric field intensity on the cable of the wireless sensing equipment and the electromagnetic energy density generated in the wireless sensing equipment. And a technical basis ...

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Номер записи: 8
03-11-2020 дата публикации

Degraded high-cold marsh wetland recovery structure

Номер: CN0211831782U
Автор: CHEN ZHI, HAN HONGPING, MA YONGGUI, XIE HUICHUN, LUO QIAOYU, SHANG JUN, WANG ZICHAO
Принадлежит: UNIV QINGHAI NORMAL, QINGHAI NORMAL UNIVERSITY

The utility model discloses a degraded high and cold marsh wetland recovery structure. The device comprises a tower head group arranged on a degraded alpine swamp wetland and an interception ridge arranged at the lower edge of the tower head group, the tower head group is composed of a plurality of tower heads dispersed on the degraded alpine swamp wetland, each tower head comprises a mound and awater storage tank arranged at the top of the mound, and a cloth bag is paved on the outer side face of the lower portion of the mound. Wherein a cloth bag layer surrounding the lower part of the mound is formed, geocells are arranged on the mound surface above the cloth bag layer and the surface of the water storage tank, the geocells are filled with turf layers, and a timber pile row is arrangedbelow the cloth bag layer; cloth bags are laid on the lower portions of the inner side face and the outer side face of the interception ridge to form cloth bag layers, a timber pile row is arranged below ...

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Номер записи: 9
09-06-2023 дата публикации

System and method for determining relationship between sound wave interference degree and attenuation distance

Номер: CN116242474A
Автор: WANG YANZHAO, ZHOU BING, HU JINGZHU, NI YUAN, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, XIE HUICHUN, ZHAO JUN, LIU XINGFA, LI NI, ZHANG YEMAO, LIAO ZHENGHAI, LU YAO, WAN HAO, HE WEI, XU JILAI, LIU ZHENHUAN, HUANG RUI, CHEN YULONG, YU YAO, TENG ZIHAN
Принадлежит:

The invention discloses a system and method for determining the relation between the sound wave interference degree and the attenuation distance, and belongs to the technical field of power grid environment protection. The system comprises a terminal, a data collector, a power amplifier, an artificial sound source and a noise sensor, the terminal is used for setting artificial sound source parameters and transmitting the artificial sound source parameters to a power amplifier in a signal form through a data collector, and the power amplifier amplifies the signal and then transmits the amplified signal to an artificial sound source; after the artificial sound source receives a signal, the artificial sound source emits single-frequency noise with a preset frequency, noise pressure level data of different measuring points on a noise center line of the artificial sound source are measured through a noise sensor, the noise pressure level data are transmitted to a terminal through a data collector ...

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Номер записи: 10
26-05-2023 дата публикации

Discharge interference rectification system and method for wireless sensing equipment

Номер: CN116165485A
Автор: LIU XINGFA, GUO XINJU, LI YIFENG, ZHANG JIANGONG, GAN ZHEYUAN, YIN TING, YANG DAN, LU YAO, QI DAOKUN, TANG BO, HE WEI, ZHAO JUN, WANG YANZHAO, XIE HUICHUN, ZHANG YEMAO, LI NI, RIZONO, ZHOU BING, HU JINGZHU
Принадлежит:

The invention discloses a discharge interference rectification system and method for wireless sensing equipment, and belongs to the technical field of electromagnetic compatibility of power transmission and transformation projects. The system comprises a test transformer used for outputting a test voltage; the voltage divider is used for dividing the test voltage and then applying the test voltage to the to-be-tested wireless sensing equipment; the antenna is used for transmitting the first pre-test electric signal and the first test electric signal to a frequency spectrograph; the near-field probe is used for transmitting the second pre-test electric signal and the second test electric signal to a frequency spectrograph; and the frequency spectrograph is used for determining whether point discharge occurs in the to-be-detected wireless sensing equipment based on the first comparison result, and determining whether a sensitive or defective part occurs in the to-be-detected wireless sensing ...

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Номер записи: 11
17-09-2014 дата публикации

Treatment method for seeds of notopterygium roots

Номер: CN104041221A
Автор: CHEN ZHI, SHANG JUN, HAN HONGPING, MA YONGGUI, QIAO FENG, XIE HUICHUN, BAO MIN
Принадлежит:

The invention discloses a treatment method for seeds of notopterygium roots and particularly relates to a method of germinating pretreatment. The method comprises the following steps: weighing 1000g of seeds of notopterygium roots; uniformly mixing the seeds of notopterygium roots by 50-500ppm auxin according to 20wt% of the seeds of notopterygium roots; treating for 90 days at 5-25 DEG C; uniformly mixing 50-500ppm (parts per million) gibberellin according to 25wt% of the seeds of notopterygium roots; treating for 60 days at 10-25 DEG C; counting 3 parts of the seeds of notopterygium roots after treatment, wherein each part contains 1000 seeds; germinating for 1 week at 20 DEG C and carrying out statistics on germination rate. With adoption of treatment by using auxin and gibberellin, the germination rate of the seeds of notopterygium roots can be remarkably improved to reach over 95%, thereby solving the key technical problem on manual standardized planting of notopterygium roots.

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Номер записи: 12
21-04-2023 дата публикации

Suspension field mill device and space direct current composite electric field measuring method

Номер: CN115993467A
Автор: LIAO ZHENGHAI, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, ZHANG YEMAO, WANG YANZHAO, XU JILAI, HE WEI, XIE HUICHUN, LU YAO, LIU YANG, XU HONGHUA, LIU XINGFA, LI NI, LIU ZHENHUAN, NI YUAN, ZHAO JUN, ZHOU BING, WAN HAO, HU JINGZHU
Принадлежит:

The invention discloses a suspension field mill device and a space direct current composite electric field measuring method. The device comprises an inductive probe, a power piece and an insulating shell, the inductive probe and an insulating support of the insulating shell are coaxially arranged, and the power piece is arranged in a closed space formed by the inductive probe and the insulating shell; a shaft of the power piece is coaxially and fixedly connected with the inductive probe, and a main body of the power piece is coaxially and fixedly connected with the insulating support; the power piece is switched to operate at at least two different rotating speeds, and the inductive probe induces a synthetic electric field below the direct-current line. Therefore, a power piece, namely a direct-current brushless motor, is adopted to perform stable variable-speed operation at different rotating speeds in a program control manner, so that the accurate measurement of the intensity of the space ...

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Номер записи: 13
21-04-2023 дата публикации

Field measurement method and device for extra-high voltage converter station phase modifier room noise

Номер: CN115993174A
Автор: NI YUAN, CHEN WEI, ZHOU BING, WANG YANZHAO, HU JINGZHU, LIAO ZHENGHAI, TANG QI, ZHANG JIANGONG, GAN ZHEYUAN, LU LING, LI JINYU, WAN HAO, LIU JIANBEN, LIU ZHENHUAN, ZHANG YEMAO, LIU XINGFA, XIE HUICHUN, ZHAO JUN, LU YAO, LI NI
Принадлежит:

The invention discloses a field measurement method and device for extra-high voltage converter station phase modifier room noise, and the method comprises the steps: carrying out the grid distribution of a phase modifier room, and obtaining the A-weighting equivalent sound pressure level of each grid distribution point; comparing the A-weighted equivalent sound pressure level of each grid distribution point with a preset threshold value, and determining the A-weighted equivalent sound pressure level greater than the preset threshold value as a main noise source of the phase modifier room; measuring points of main noise source related equipment of the phase modifier room are determined, and the average sound pressure level and the sound power level of all the measuring points are calculated; and according to a preset noise attenuation test path, obtaining a noise attenuation value of the main noise source related equipment by measuring the A-weighted equivalent sound pressure level of each ...

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Номер записи: 14
18-01-2012 дата публикации

Shielding chamber cable grounding method

Номер: CN0101567525B
Автор: BAOQUAN WAN, XIONG WU, GUANGZHOU ZHANG, XIAOWU ZHANG, QIN WANG, HONG JIANG, HUICHUN XIE, WAN BAOQUAN, WU XIONG, ZHANG GUANGZHOU, ZHANG XIAOWU, WANG QIN, JIANG HONG, XIE HUICHUN
Принадлежит:

The invention relates to a shielding chamber cable grounding method which comprises the following steps: as for a cable entering into and exiting from a shielding chamber, a Roxtec EMC module is adopted to well connect a shielding layer of the cable and a reinforced steel structure of the shielding chamber, and the shielding layer of the cable and the reinforced steel structure of the shielding chamber are grounded together; a filter is additionally arranged between the shielding layer of the cable and a cable core for filtering out interference signals so as to partition electromagnetic energy inside and outside the shielding chamber caused by the entry and exit of the cable. According to the shielding principle of the shielding chamber, the invention analyzes factors affecting shieldingeffectiveness and conducts grounding method research and device development according to the structure of the cable entering into and exiting from the shielding chamber, thereby ensuring the shieldingproperty ...

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Номер записи: 15
09-05-2023 дата публикации

Ion flow field calculation method and device considering building materials

Номер: CN116090150A
Автор: XU JILAI, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, LIU YANG, XU HONGHUA, LU YAO, ZHANG YEMAO, LIU XINGFA, XIE HUICHUN, HE WEI, LIAO ZHENGHAI, WANG YANZHAO, NI YUAN, LI NI, ZHAO JUN, TENG ZIHAN, QI PENG, LU HAONAN
Принадлежит:

The invention discloses an ion flow field calculation method and device considering building materials. The method comprises the following steps: establishing an ion flow field calculation model considering a building material under the condition of conductor corona onset, and setting a voltage distribution estimated value of a building boundary; determining the maximum field intensity of the surfaces of the positive and negative conductors by using an ion flow field calculation model, and determining the ion flow density distribution of the boundary of the building according to the maximum field intensity of the surfaces of the positive and negative conductors and the corona inception field intensity of the positive and negative conductors; according to the ion current density distribution of the building boundary, utilizing a current field calculation model to determine electric field intensity distribution in the building, and according to the electric field intensity distribution in ...

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Номер записи: 16
30-05-2023 дата публикации

Test system and method for determining sensitive/defective part of wireless sensing equipment

Номер: CN116184289A
Автор: LIU XINGFA, GUO XINJU, LI YIFENG, ZHANG JIANGONG, GAN ZHEYUAN, YIN TING, YANG DAN, LU YAO, QI DAOKUN, TANG BO, HE WEI, ZHAO JUN, WANG YANZHAO, XIE HUICHUN, ZHANG YEMAO, LI NI, RIZONO, ZHOU BING, HU JINGZHU
Принадлежит:

The invention discloses a test system and method for determining a sensitive/defective part of wireless sensing equipment, and belongs to the technical field of electromagnetic compatibility of power transmission and transformation projects. The system comprises a test transformer used for outputting a test voltage; the voltage divider is used for connecting to-be-tested wireless sensing equipment, dividing the test voltage and then applying the test voltage to the to-be-tested wireless sensing equipment; the near-field probe is used for transmitting the pre-test electric signal and the test electric signal to a frequency spectrograph; and the frequency spectrograph is used for determining whether sensitive or defective parts appear in the wireless sensing equipment to be detected due to electromagnetic interference based on the comparison result. The system provided by the invention can accurately determine whether the wireless sensing equipment receives electromagnetic interference or ...

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Номер записи: 17
18-07-2023 дата публикации

Suspension field grinding instrument and measuring method of space electric field

Номер: CN116449119A
Автор: LIAO ZHENGHAI, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, ZHAO JUN, ZHANG YEMAO, XU JILAI, WANG YANZHAO, LIU XINGFA, XIE HUICHUN, LU YAO, ZHOU BING, NI YUAN, LI NI, HU JINGZHU, HE WEI
Принадлежит:

The invention provides a suspension field grinding instrument and a measurement method of a space electric field. The suspension field grinding instrument comprises a suspension electric field differential induction module, a signal processing module, a suspension electric field isolation module and an upper computer, a first inductive probe and a second inductive probe are arranged in the suspension electric field differential induction module, and each of the first inductive probe and the second inductive probe is provided with a plurality of electrode pairs; a first driving mechanism and a second driving mechanism are also arranged in the suspension electric field differential sensing module; the first driving mechanism drives the first inductive probe to rotate in the space electric field to generate a first induced current; the driving mechanism drives the second induction probe to rotate in the space electric field to generate second induction current; the signal processing module ...

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Номер записи: 18
09-05-2023 дата публикации

Movable protection device and protection method for power equipment

Номер: CN116093759A
Автор: LIU JIANBEN, ZHOU ZHONGTANG, DAI SHAOJUN, LIU HUAGANG, LI ZIKAI, WANG JIANJI, CHEN YU, XU MINGZHU, LI ZHONGKAI, ZHANG JIANGONG, GAN ZHEYUAN, LI NI, ZHAO JUN, NI YUAN, XIE HUICHUN, LIU XINGFA, ZHOU BING, HU JINGZHU, ZHANG YEMAO, LU YAO, LIAO ZHENGHAI, WANG YANZHAO, LIU YAN, WAN HAO, LIU ZHENHUAN, HUANG RUI, CHEN YULONG, YU YAO, XU JILAI, TENG ZIHAN, QI PENG, LIANG ZHIQIANG, LI JIANHUI, LIANG ZHIHUI, LI ZHAOLIANG
Принадлежит:

The invention discloses a movable protection device and protection method for power equipment. The device comprises a detection module, a main control module, a walking module and a protection cover body, the method comprises the following steps: a detection module monitors a weather state, obtains a weather state result, and sends the weather state result to a main control module; the main control module sends an operation instruction to the walking module according to the weather state result and the position information of the walking module; the main control module sends an opening and closing instruction to the protective cover body according to the weather state result and the opening and closing state of the protective cover body; the walking module moves according to the operation instruction and drives the protective cover body to move, so that the position of the protective cover body is changed, and the protective cover body is far away from the power equipment or located above ...

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Номер записи: 19
23-11-2011 дата публикации

Method for determining line-to-line distance between alternating-current extra-high voltage single-circuit compact type 10 split conductors

Номер: CN0102254071A
Автор: BAOQUAN WAN, YEMAO ZHANG, HUICHUN XIE, YUAN NI, WAN BAOQUAN, ZHANG YEMAO, XIE HUICHUN, NI YUAN
Принадлежит:

The invention relates to a method for determining a line-to-line distance between alternating-current extra-high voltage single-circuit compact type 10 split conductors which satisfies with requirements of an electromagnetic environment. The method comprises the steps of: firstly, summarizing and determining a limit value of the electromagnetic environment, and setting up models for calculating various parameters of the electromagnetic environment by using a calculating method which is generally acknowledged in the international electric transmission line environmental field; secondly, comprehensively considering to select proper 10 split conductors and a split space; and finally, calculating and analyzing an electromagnetic environment for the selected 10 split conductors which are arranged in an equilateral inverse triangle structure to obtain a minimal line-to-line distance of the 10 split conductors which satisfy with the environment limit value. The result of the invention can be applied ...

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Номер записи: 20
12-05-2023 дата публикации

Tandem type suspension field mill probe with two-stage induction structure

Номер: CN116106645A
Автор: LIAO ZHENGHAI, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, ZHANG YEMAO, WANG YANZHAO, XU JILAI, HE WEI, XIE HUICHUN, LU YAO, LIU YANG, XU HONGHUA, LIU XINGFA, LI NI, LIU ZHENHUAN, NI YUAN, ZHAO JUN, ZHOU BING, WAN HAO, HU JINGZHU
Принадлежит:

The invention relates to a two-stage induction structure series connection type suspension field mill probe which comprises a first-stage induction structure, a second-stage induction structure, a reduction gearbox and a motor. A first conductive slip ring is connected and arranged in the cavity of the first-stage induction structure; the second-stage induction structure is arranged below the first-stage induction structure and connected with the first conductive slip ring, and a second conductive slip ring is arranged in a cavity of the second-stage induction structure in a connected mode; the reduction gearbox is arranged between the first-stage induction structure and the second-stage induction structure, one end of the reduction gearbox is connected to the first conductive slip ring, the other end of the reduction gearbox is connected with the second-stage induction structure, and the reduction gearbox is located in a cavity of the first-stage induction structure; and the motor is arranged ...

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Номер записи: 21
18-07-2023 дата публикации

Power transmission line electric field signal acquisition system and electric field measurement data calibration method thereof

Номер: CN116449113A
Автор: LIAO ZHENGHAI, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, ZHANG YEMAO, WANG YANZHAO, LIU XINGFA, LI NI, NI YUAN, ZHAO JUN, ZHOU BING, WAN HAO, HU JINGZHU, XU JILAI, HE WEI, XIE HUICHUN, LU YAO, LIU ZHENHUAN, LIU YANG
Принадлежит:

The invention discloses a power transmission line electric field signal acquisition system and an electric field measurement data calibration method thereof. The system comprises a plurality of suspension field grinding instruments, a spread spectrum Lora wireless communication host module and an upper computer, the suspension field grinding instruments are used for being placed at different positions below a power transmission line so as to measure electric field intensity signals below the power transmission line, and measured electric field measurement data are sent to the spread spectrum Lora wireless communication host module; the spread spectrum Lora wireless communication host module is in wireless communication connection with the plurality of suspension field grinding instruments and is used for controlling the working states of the plurality of suspension field grinding instruments and receiving electric field measurement data; and the upper computer is in wired connection with ...

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Номер записи: 22
08-08-2023 дата публикации

Power frequency electric field measuring device calibration system and method based on temperature and humidity compensation

Номер: CN116559746A
Автор: LU HAONAN, ZHANG JIANGONG, WAN HAO, ZHANG YEMAO, GAN ZHEYUAN, LU YAO, ZHANG ZHENYU, XIE HUICHUN, LIU FENGCHUN, LIU XINGFA, LIU ZHENHUAN, LIU HUAGANG, NI YUAN, WANG YANZHAO, ZHAO JUN, ZHOU BING, HU JINGZHU, LI NI, CHEN YULONG, HUANG RUI
Принадлежит:

The invention discloses a power frequency electric field measuring device calibration system and method based on temperature and humidity compensation. The power frequency electric field measuring device calibration system comprises a temperature and humidity control box, an electric field generating device and a fixing assembly. The electric field generating device is arranged in the temperature and humidity control box and used for generating an electric field and adjusting the intensity of the electric field. The fixing assembly is arranged in the temperature and humidity control box and used for supporting and fixing the power frequency electric field measuring device, connecting the power frequency electric field measuring device with the ground and enabling the x axis, the y axis and the z axis of the power frequency electric field measuring device to be consistent with the direction of an electric field generated by the electric field generating device. The calibration test of the ...

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Номер записи: 23
25-03-2009 дата публикации

Determining and protecting method for influence of extra-high voltage AC pipeline on petroleum and nature gas pipeline

Номер: CN0101392870A
Автор: WAN BAOQUAN, WU XIONG, XIE HUICHUN, ZHANG GUANGZHOU, LI NI, BAOQUAN WAN, XIONG WU, HUICHUN XIE, GUANGZHOU ZHANG, NI LI
Принадлежит:

The invention relates to a determination and protection method for influence of super-high voltage alternating current line on an oil and gas pipeline. The method comprises the following steps: firstly, building an equivalent circuit model of a multi-conductor transmission system consisting of a super-high voltage alternating current transmission line and a buried metal pipeline; calculating and adding the interferences of the transmission line on the pipeline through inductive coupling in a normal state and a short circuit state to get a total interference; calculating and analyzing factors leading to the fact that the transmission line influences the degree of the electromagnetic interference of the transmission line on the metal pipeline under different conditions, and calculating and analyzing the influence of an alternating current on corrosion of the metal pipeline; meanwhile, carrying out simulation experiments of inductive coupling and resistive coupling respectively; and summarizing ...

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Номер записи: 24
07-04-2023 дата публикации

Optimization control system for grid-side current harmonics of single-phase PWM (Pulse-Width Modulation) rectifier

Номер: CN115940673A
Автор: LIU JIANBEN, ZHAO JUN, NI YUAN, ZHANG YEMAO, LIU XINGFA, ZHOU BING, LI NI, XIE HUICHUN, LU YAO, ZHANG JIANGONG, GAN ZHEYUAN, WANG YANZHAO, HU JINGZHU, LIU YAN, WAN HAO, LIU ZHENHUAN, HUANG RUI, CHEN YULONG, YU HUI, YU YAO, XU JILAI, TENG ZIHAN
Принадлежит:

The invention discloses an optimal control system for grid-side current harmonics of a single-phase PWM rectifier. The optimal control system comprises a phase-locked loop module, a direct-current voltage signal processing module, a control module and a sine pulse width modulation module, wherein the phase-locked loop module is used for processing a rectifier network side alternating current power supply to obtain a corresponding sinusoidal signal; the direct-current voltage signal processing module is used for processing the rectifier direct-current voltage instruction value and the rectifier direct-current voltage signal to obtain an input signal; the control module is used for processing the sinusoidal signal, the input signal, the rectifier network side alternating current power supply and the rectifier alternating current side voltage signal to obtain a power bridge modulation signal; and the sine pulse width modulation module is used for comparing the power bridge modulation signal ...

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Номер записи: 25
09-05-2023 дата публикации

Method and system for calculating audible noise of ultrahigh-voltage single-loop alternating-current transmission line

Номер: CN116087635A
Автор: LIU ZHENHUAN, ZHANG JIANGONG, GAN ZHEYUAN, LU YAO, WAN HAO, CHEN YULONG, HUANG RUI, XIE HUICHUN, ZHANG YEMAO, WANG YANZHAO, ZHAO JUN, ZHOU BING, NI YUAN
Принадлежит:

The invention provides a method and a system for calculating audible noise of an ultrahigh-voltage single-loop alternating-current transmission line. According to the method and the system, an ultrahigh-voltage single-circuit transmission line is equivalent to a long direct current charge element, meanwhile, according to the height Hm0, determined by considering equivalent rationality, from the long direct current charge element to the ground, the solution in a three-dimensional environment is reduced to a two-dimensional plane, and then according to the voltage and the maximum sag of the transmission line and the height Hm0, the solution in a three-dimensional environment is calculated. And determining the surface potential gradient and the sound power level of the charge point according to the conductor parameters of the multi-split conductor used by the power transmission line, and finally calculating the audible noise of any point in the two-dimensional plane according to the sound ...

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Номер записи: 26
08-08-2023 дата публикации

Power frequency electric field measuring device calibration system and method based on temperature and humidity compensation

Номер: CN116559747A
Автор: LU HAONAN, ZHANG JIANGONG, WAN HAO, ZHANG YEMAO, GAN ZHEYUAN, LU YAO, ZHANG ZHENYU, XIE HUICHUN, LIU FENGCHUN, LIU XINGFA, LIU ZHENHUAN, LIU HUAGANG, NI YUAN, WANG YANZHAO, ZHAO JUN, ZHOU BING, HU JINGZHU, LI NI, CHEN YULONG, HUANG RUI
Принадлежит:

The invention discloses a power frequency electric field measuring device calibration system and method based on temperature and humidity compensation. The power frequency electric field measuring device calibration system comprises a temperature and humidity control box, a platform assembly and an electric field generating device. The platform assembly is arranged in the temperature and humidity control box, and the platform assembly is used for supporting the power frequency electric field measuring device and connecting the power frequency electric field measuring device with the ground. The electric field generating device is arranged in the temperature and humidity control box and used for applying electric fields in the horizontal direction and the vertical direction to the power frequency electric field measuring device arranged on the platform assembly and adjusting the intensity of the electric fields. The calibration test of the power frequency electric field measuring device ...

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Номер записи: 27
02-07-2014 дата публикации

Method for testing high-voltage transmission line television interferences

Номер: CN103901282A
Автор: XIE HUICHUN, ZHANG JIANGONG, PEI CHUNMING, ZHOU BING, NI YUAN, LIU ZHENHUAN, HUANG RUI, WAN HAO
Принадлежит:

The invention provides a method for testing high-voltage transmission line television interferences. The method comprises the following steps of analyzing television signal frequency bands of a tested area and recording television images before television interferences, selecting a measuring position, selecting antennas according to the frequency range of television interferences, and selecting television interference field intensity frequencies and measuring television interference field intensity. According to the method for testing high-voltage transmission line television interferences, the television interference field intensity generated by corona of a high-voltage transmission line is measured, interfered television images are obtained at the same time, the interference degree of television signals and images is evaluated, and the blank of the current high-voltage transmission line television interference testing method is filled.

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Номер записи: 28
06-08-2014 дата публикации

Method for treating blysmus sinocompressus seeds

Номер: CN103959957A
Автор: HAN HONGPING, SHANG JUN, XIE HUICHUN, MA YONGGUI, CHEN ZHI, CHEN ZHENNING, JIN LAN, QIAO FENG
Принадлежит:

The invention provides a method for treating blysmus sinocompressus seeds. The method comprises the following steps: (1) preparing a proper number of blysmus sinocompressus seeds; (2) uniformly stirring a proper amount of auxin with the blysmus sinocompressus seeds, wherein the amount of the auxin accounts for 20 percent of the mass of blysmus sinocompressus; and (3) standing the stirred blysmus sinocompressus seeds at the temperature of 5-25 DEG C for 90 days, and then standing at the temperature of 5-10 DEG C for 30 days. According to the method for treating blysmus sinocompressus seeds provided by the invention, after the blysmus sinocompressus seeds are treated by the auxin, the germination rate of the blysmus sinocompressus seeds can be remarkably increased to over 75 percent. Key technical problems are solved in order to realize standard artificial planting of blysmus sinocompressus.

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Номер записи: 29
30-05-2023 дата публикации

Test system and method for determining point discharge of wireless sensing equipment

Номер: CN116184128A
Автор: LIU XINGFA, GUO XINJU, LI YIFENG, ZHANG JIANGONG, GAN ZHEYUAN, YIN TING, YANG DAN, LU YAO, QI DAOKUN, TANG BO, HE WEI, ZHAO JUN, WANG YANZHAO, XIE HUICHUN, ZHANG YEMAO, LI NI, RIZONO, ZHOU BING, HU JINGZHU
Принадлежит:

The invention discloses a test system and method for determining point discharge of wireless sensing equipment, and belongs to the technical field of electromagnetic compatibility of power transmission and transformation projects. The system comprises a test transformer used for outputting a test voltage; the voltage divider is used for connecting to-be-tested wireless sensing equipment, dividing the test voltage and then applying the test voltage to the to-be-tested wireless sensing equipment; the antenna is used for receiving a pre-test electric signal of the to-be-tested wireless sensing equipment before the test and a test electric signal of the to-be-tested wireless sensing equipment after the partial pressure test voltage is applied, and transmitting the pre-test electric signal and the test electric signal to the frequency spectrograph; and the frequency spectrograph is used for determining whether point discharge occurs in the wireless sensing equipment to be detected based on the ...

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Номер записи: 30
16-09-2015 дата публикации

System and method for processing fish fries by utilizing a power frequency magnetic field

Номер: CN104904625A
Автор: LIU XINGFA, ZHANG JIANGONG, ZHAO JUN, LU YAO, XIE HUICHUN, GAN ZHEYUAN, CHEN YULONG, TANG BO
Принадлежит:

The present invention relates to a system and a method in the technique field of a power frequency magnetic field, and particularly relates to a system and a method for processing fish fries by utilizing a power frequency magnetic field. The system includes a power frequency magnetic field generating device, and an aquarium for placing fish fries is arranged on the middle part of a magnetic field coil of the power frequency magnetic field. The method includes steps as follows: step 1: immersing healthy fish fries in a 4% saline solution for a time of 5-10 minutes; step 2: placing the fish fries processed by the step 1 in the organic glass aquarium, and opening the power frequency magnetic field generating device to act on the fish fries. According to the invention, a digestive function of fish fries is influenced by the power frequency magnetic field and a digestive protease activity effect so as to accelerate development and growing of fish fries, and the system and method can solve a ...

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Номер записи: 31
22-08-2023 дата публикации

Method and device for separating and eliminating sound environment noise interference of transformer substation and medium

Номер: CN116631424A
Автор: LIAO ZHENGHAI, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, ZHAO JUN, HU JINGZHU, ZHOU BING, LIU XINGFA, JIN WENDE, FENG JIA, NI YUAN, LI NI, WANG YANZHAO, ZHANG YEMAO, XIE HUICHUN, LU YAO, HE WEI
Принадлежит:

The invention discloses a substation acoustic environment noise interference separation and elimination method and device and a medium. The method comprises the following steps: measuring a transformer substation sound environment according to a noise measuring device to obtain a transformer substation sound environment signal; framing and windowing processing is carried out on the transformer substation sound environment signal, each frame of transformer substation sound environment processing signal is obtained, and sound energy of each frame of transformer substation sound environment processing signal is calculated; under the condition that the sound energy is not higher than a preset sound energy threshold value, it is judged that noise interference does not exist in the transformer substation sound environment signal of the frame, otherwise, noise interference exists in the transformer substation sound environment signal of the frame; separating the frame of the transformer substation ...

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Номер записи: 32
11-04-2023 дата публикации

Outlier discrimination method and device for actual measurement data of synthetic electric field of direct current transmission line

Номер: CN115952634A
Автор: XIE HUICHUN, ZHANG JIANGONG, WANG JIN, NI YUAN, GAN ZHEYUAN, ZHANG YEMAO, LIU XINGFA, LIU ZHENHUAN, ZHAO JUN, WANG YANZHAO, ZHOU BING, LU YAO, LI NI, LIU JIANBEN, HU JINGZHU, WAN HAO
Принадлежит:

The invention discloses an outlier discrimination method and device for actual measurement data of a synthetic electric field of a direct current transmission line. The method comprises the following steps: selecting a modeling data set from an actual measurement data sequence according to the occurrence time of a suspicious value in the obtained actual measurement data sequence; when the modeling data set is a non-stationary series, modeling the non-stationary series by adopting an exponential smoothing method to obtain an exponential smoothing model, and calculating a first prediction interval of the exponential smoothing model; performing difference stabilization processing on the non-stationary series, performing modeling of a first ARIMA model on the basis of a differentiated sequence obtained by the difference stabilization processing, and calculating a second prediction interval of the first ARIMA model; determining a target prediction interval based on the first prediction interval ...

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Номер записи: 33
09-05-2023 дата публикации

Method and device for calculating power frequency electric field above building

Номер: CN116090278A
Автор: XU JILAI, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, ZHANG LIANG, LU YAO, ZHANG YEMAO, LIU XINGFA, XIE HUICHUN, LIU ZHENHUAN, WAN HAO, HE WEI, LIAO ZHENGHAI, WANG YANZHAO, NI YUAN, LI NI, ZHAO JUN, HU JINGZHU, TENG ZIHAN, QI PENG, LU HAONAN
Принадлежит:

The invention discloses a method and a device for calculating a power frequency electric field above a building. The method comprises the following steps: determining a field intensity distribution curve at a preset height of the ground by utilizing a pre-established alternating current overhead line model and a charge simulation method; according to the distortion coefficient curve calculation results of the buildings of different sizes, determining distortion coefficient fitting curves of the buildings of different sizes by using a fitting formula; and calculating the power frequency field intensity amplitude at the preset height above the building by using the distortion coefficient fitting curve of the building and the field intensity distribution curve at the preset height of the ground and combining the distance between the building and the equivalent single conductor.

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Номер записи: 34
09-05-2023 дата публикации

Method and system for calculating electric field intensity of ultrahigh-voltage single-loop alternating-current transmission line

Номер: CN116087632A
Автор: LIU ZHENHUAN, ZHANG JIANGONG, GAN ZHEYUAN, LU YAO, WAN HAO, CHEN YULONG, HUANG RUI, XIE HUICHUN, ZHANG YEMAO, WANG YANZHAO, ZHAO JUN, ZHOU BING, NI YUAN
Принадлежит:

The invention provides a method and a system for calculating the electric field intensity of an ultrahigh-voltage single-loop alternating-current transmission line, the ultrahigh-voltage single-loop transmission line is equivalent to a long direct-current charge element, meanwhile, according to the height Hm0 of the long direct-current charge element from the ground determined by considering the equivalent rationality, the solution in a three-dimensional environment is dimensionally reduced to a two-dimensional plane, and the electric field intensity of the ultrahigh-voltage single-loop alternating-current transmission line is calculated. According to the voltage and potential coefficient of the power transmission line, the charge quantity of the long direct charge element equivalent to the charge point element of the two-dimensional plane is determined, and according to the charge quantity, the electric field intensity generated by the charge point element at any point in the two-dimensional ...

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Номер записи: 35
06-06-2023 дата публикации

Method for improving soil enzyme activity and soil fertility of renewal forest saline-alkali soil

Номер: CN116217306A
Автор: GENG GUIGONG, ZHANG GUI, QIAO FENG, XIE HUICHUN, XU ZHONGYANG, LAI YOUPENG
Принадлежит:

The invention relates to the technical field of soil improvement, in particular to a method for improving soil enzyme activity and soil fertility of renewal forest saline-alkali soil. The composite soil conditioner can adjust the pH value of saline-alkali soil, change the physical and chemical properties of the soil, increase the nutrient components of the soil and the composition of alternate adsorptive cations of the soil, further improve the environment of the soil and the microbial community and increase the permeability of the soil, so that the purpose of improving the soil is achieved; by applying the light-carbon organic fertilizer and sowing the green manure seeds, the soil nutrient content of the protection forest land can be further increased, part of soil diseases are eliminated, the inhibition effect of heavy metal on nutrient absorption of nursery stocks is reduced, the pH value of the soil is adjusted, and finally the survival rate of the nursery stocks is increased. In addition ...

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Номер записи: 36
12-05-2010 дата публикации

Determining and protecting method for influence of extra-high voltage AC pipeline on petroleum and nature gas pipeline

Номер: CN0101392870B
Автор: WU XIONG, XIE HUICHUN, LI NI, WAN BAOQUAN, ZHANG GUANGZHOU, XIONG WU, HUICHUN XIE, NI LI, BAOQUAN WAN, GUANGZHOU ZHANG
Принадлежит:

The invention relates to a determination and protection method for influence of super-high voltage alternating current line on an oil and gas pipeline. The method comprises the following steps: firstly, building an equivalent circuit model of a multi-conductor transmission system consisting of a super-high voltage alternating current transmission line and a buried metal pipeline; calculating and adding the interferences of the transmission line on the pipeline through inductive coupling in a normal state and a short circuit state to get a total interference; calculating and analyzing factors leading to the fact that the transmission line influences the degree of the electromagnetic interference of the transmission line on the metal pipeline under different conditions, and calculating and analyzing the influence of an alternating current on corrosion of the metal pipeline; meanwhile, carrying out simulation experiments of inductive coupling and resistive coupling respectively; and summarizing ...

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Номер записи: 37
13-06-2023 дата публикации

Method and system for measuring high-voltage shunt reactor side factory boundary environment noise

Номер: CN116256056A
Автор: ZHOU BING, WANG YANZHAO, NI YUAN, HU JINGZHU, LIU HONG, WAN BAOQUAN, ZHANG JIANGONG, GAN ZHEYUAN, LIU XINGFA, LU YAO, ZHANG YEMAO, XIE HUICHUN, ZHAO JUN, LI NI, LIU ZHENHUAN, LIAO ZHENGHAI, HE WEI
Принадлежит:

The invention discloses a method and a system for measuring factory boundary environment noise on a high-voltage shunt reactor side, and belongs to the technical field of power grid environment protection. The method comprises the following steps: acquiring basic structure data of the high-voltage shunt reactor of the transformer substation, determining a factory boundary of the high-voltage shunt reactor based on the basic structure data, and determining a plurality of measuring points for noise measurement within the range of the factory boundary; determining a measuring point range of the plurality of measuring points, measuring an A-sound-level instantaneous value in the measuring point range through a sound level meter by adopting a translation method in the plurality of measuring point ranges, determining a measuring position when the A-sound-level instantaneous value is maximum, and measuring a sound level of the factory boundary environment in a preset time through the sound level ...

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Номер записи: 38
04-04-2023 дата публикации

Method and system for detecting audible noise abnormal data of alternating current ultra-high voltage transmission line

Номер: CN115902443A
Автор: LIU ZHENHUAN, ZHANG YEMAO, ZHANG JIANGONG, GAN ZHEYUAN, LU YAO, CHEN YULONG, HUANG RUI, YU YAO, XU JILAI, TENG ZIHAN, XIE HUICHUN, LIU XINGFA, NI YUAN, WAN HAO, ZHAO JUN, WANG YANZHAO, ZHOU BING, HU JINGZHU
Принадлежит:

The invention discloses an AC ultra-high voltage transmission line audible noise abnormal data detection method and system. The method comprises the steps of obtaining audible noise data corresponding to each environment sensitive target in a to-be-detected AC transmission project, first position information of a position where the environment sensitive target is located and second position information of a position where a corresponding wire is located; according to the first position information and the second position information, the Euclidean distance between each environment sensitive target and the corresponding wire is determined; generating a data set of a two-dimensional space according to the audible noise and the Euclidean distance of the environment sensitive target, and determining the kth distance neighborhood of the instance corresponding to each environment sensitive target; calculating local reachable density corresponding to each environment sensitive target according ...

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Номер записи: 39