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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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Применить Всего найдено 10. Отображено 10.
21-07-2010 дата публикации

Method and device of intelligent calibration for power system relay protection

Номер: CN0101207280B
Автор: YANG XIMING, RONG JILIANG, LI SHEN, XIONG CHAOYING, LU WEI, ZHU QINGTAO, WU JIANMIN, QIAO WEIDONG, ZHOU JINGDONG, XIMING YANG, JILIANG RONG, SHEN LI, CHAOYING XIONG, WEI LU, QINGTAO ZHU, JIANMIN WU, WEIDONG QIAO, JINGDONG ZHOU
Принадлежит:

The invention relates to an intellectualized verification method of the relay protection in the electrical power system and the device, which belongs to the testing field. The invention comprises the verification to the relay protection device by using the verification device, and is characterized in that a winding displaced cross matrix are arranged between the verification device and the verified protection device, a relay connection point is arranged at the crossing point of each winding displaced cross matrix, so as to verify the logical controlling device to in sequence put through the connection point of each controlled relay, the electrical quantity at all the port of the winding displaced cross matrix is collected, the on / off at the connection point of the corresponding relay ischosen / controlled according to the preset logical judging condition, so as to ensure that the corresponding input and output terminals between the verification device and the relay protection device are ...

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Номер записи: 1
02-11-2011 дата публикации

Method for detecting parasitic loop of transformer station direct current system

Номер: CN0101750540B
Автор: DAI CHUNYI, FENG YUTING, LU WEI, WU JIANMIN, XIONG CHAOYING, YANG XIMING, CHUNYI DAI, YUTING FENG, WEI LU, JIANMIN WU, CHAOYING XIONG, XIMING YANG
Принадлежит:

The invention relates to a method for detecting a parasitic loop of a transformer station direct current system, and belongs to the field of electrical measurement. The method comprises the following steps that: a current sensor is set on a power output loop of the direct current system; the sensor measures the difference current of the system; a secondary coil of the sensor is used as a inductance coil of an active oscillator; a pulse counter measures the oscillation frequency of the active oscillator, and transmits the measured result to a microprocessor circuit for logic comparison; the microprocessor circuit sends an alarm signal if the change of the oscillation frequency of the active oscillator reaches a preset value; one loop of direct current power supply is switched off if the alarm signals appear on the two loops of power output loops at the same time; and the parasitic loop exists between the two power output loops if the alarm signals disappear on the two loops of power output ...

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Номер записи: 2
27-07-2011 дата публикации

Movable-type static synchronous compensator with compact structure design

Номер: CN0102136730A
Автор: XUAN WANG, WUDI YANG, CHENGMIN WANG, ZHIQI LI, KE WANG, YONGREN ZUO, MENG YUAN, TIANXU HAN, QINGPENG ZHOU, ZHONG CHANG, SHOUYUAN WU, LETIAN TENG, CHAOYING XIONG, WANG XUAN, YANG WUDI, WANG CHENGMIN, LI ZHIQI, WANG KE, ZUO YONGREN, YUAN MENG, HAN TIANXU, ZHOU QINGPENG, CHANG ZHONG, WU SHOUYUAN, TENG LETIAN, XIONG CHAOYING
Принадлежит:

The invention discloses a movable-type static synchronous compensator with a compact structure design. The compensator has high compensation capacity and rapid adjusting speed and compact structure, is convenient for transportation, and can be rapidly transferred, installed and put into operation at the urgent place needs reactive power support, thus the planning, the arrangement and the operation of a dynamic reactive power compensation device of a power grid are more flexible and effective. The movable-type static synchronous compensator comprises three functional module containers with the same structure, an auxiliary equipment container and a movable base, wherein, the functional module container comprises a single-phase converter chain and a converter chain arrester; the auxiliary equipment container comprises a control protective system, a water-cooling system and a three-phase starting loop; and the movable base comprises a connection reactor, a main breaker, an isolation switch ...

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Номер записи: 3
15-06-2011 дата публикации

High potential direct current (DC) voltage energy-taking power supply

Номер: CN0102097948A
Автор: TIANXU HAN, XUAN WANG, MENG YUAN, KE WANG, WUDI YANG, SHOUYUAN WU, LETIAN TENG, CHAOYING XIONG, JIAN FU, HAN TIANXU, WANG XUAN, YUAN MENG, WANG KE, YANG WUDI, WU SHOUYUAN, TENG LETIAN, XIONG CHAOYING, FU JIAN
Принадлежит:

The invention provides a high potential direct current (DC) voltage energy-taking power supply which is good in electrical isolation performance, and is capable of meeting the requirement of power supply of a high potential electronic circuit and stably working under the condition of wider DC input voltage range; and the DC voltage energy-taking power supply is rapid in starting speed so as to maintain stable rated output under the condition of lower DC voltage input, is good in anti-interference performance so as to be capable of normally working in the severe electromagnetic environment and is small in volume so as to meet the compact design of a device.

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Номер записи: 4
18-05-2011 дата публикации

Chain type STATCOM (Static Synchronous Compensator) chain unit bypass structure with mechanical switch

Номер: CN0102064555A
Автор: XUAN WANG, KE WANG, WEIHUA YE, RUIBIN ZHAO, ZHANFENG DENG, XIAOCHUN JIANG, TIANXU HAN, MENG YUAN, WUDI YANG, LETIAN TENG, CHAOYING XIONG, WANG XUAN, WANG KE, YE WEIHUA, ZHAO RUIBIN, DENG ZHANFENG, JIANG XIAOCHUN, HAN TIANXU, YUAN MENG, YANG WUDI, TENG LETIAN, XIONG CHAOYING
Принадлежит:

The invention provides a chain type STATCOM (Static Synchronous Compensator) chain unit bypass structure with a mechanical switch, which is characterized in that a specially designed mechanical switch is selected as a bypass circuit of a chain unit to replace a power electronic device, and the circuit has the advantages of simple structure, small selected element amount and convenience for installation and operation and supplies reliable protection for the whole chain unit, thereby realizing the redundancy function of a chain, avoiding frequent quitting of an STATCOM device, caused by a chain fault, and solving the problems of difficult type selection of a large-capacity switch device, difficult acquisition of a control power supply of the switch device and the like.

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Номер записи: 5
25-06-2008 дата публикации

Method and device of intelligent calibration for power system relay protection

Номер: CN0101207280A
Автор: QIAO WEIDONG, ZHOU JINGDONG, XIONG CHAOYING, LI SHEN, ZHU QINGTAO, RONG JILIANG, LU WEI, WU JIANMIN, YANG XIMING, WEIDONG QIAO, JINGDONG ZHOU, CHAOYING XIONG, SHEN LI, QINGTAO ZHU, JILIANG RONG, WEI LU, JIANMIN WU, XIMING YANG
Принадлежит:

The invention relates to an intellectualized verification method of the relay protection in the electrical power system and the device, which belongs to the testing field. The invention comprises the verification to the relay protection device by using the verification device, and is characterized in that a winding displaced cross matrix are arranged between the verification device and the verified protection device, a relay connection point is arranged at the crossing point of each winding displaced cross matrix, so as to verify the logical controlling device to in sequence put through the connection point of each controlled relay, the electrical quantity at all the port of the winding displaced cross matrix is collected, the on / off at the connection point of the corresponding relay is chosen / controlled according to the preset logical judging condition, so as to ensure that the corresponding input and output terminals between the verification device and the relay protection device ...

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Номер записи: 6
08-09-2010 дата публикации

Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line

Номер: CN0101825666A
Автор: KE DU, ZHENGXIAN FU, LIN JUN, MINYONG LU, WEIDONG QIAO, XINHAN WANG, CHAOYING XIONG, RONGXING ZHANG, DU KE, FU ZHENGXIAN, LU MINYONG, QIAO WEIDONG, WANG XINHAN, XIONG CHAOYING, ZHANG RONGXING
Принадлежит:

The invention relates to a method for measuring a safety distance between a suspension arm of a crane and a running super high voltage transmission line. The method comprises the following steps of: detecting a surrounding electric field intensity by using a detecting head arranged on the suspension arm, inputting a detection result into a comparison module and comparing the detection result witha pre-set value; using the strength of an electric field intensity signal as a start/stop signal of the operation of laser distance-measuring equipment; when the electric field intensity signal is higher than the pre-set value, scanning in a semispherical region to measure a distance by using the laser distance-measuring equipment; when the electric field intensity signal is lower than the pre-set value, stopping a distance detection module to reduce the power consumption of the entire detecting head; and arranging a data acquiring and displaying device in an operation room of the crane and transmitting ...

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Номер записи: 7
23-06-2010 дата публикации

Method for detecting parasitic loop of transformer station direct current system

Номер: CN0101750540A
Автор: DAI CHUNYI, FENG YUTING, LU WEI, WU JIANMIN, XIONG CHAOYING, YANG XIMING, CHUNYI DAI, YUTING FENG, WEI LU, JIANMIN WU, CHAOYING XIONG, XIMING YANG
Принадлежит:

The invention relates to a method for detecting a parasitic loop of a transformer station direct current system, and belongs to the field of electrical measurement. The method comprises the following steps that: a current sensor is set on a power output loop of the direct current system; the sensor measures the difference current of the system; a secondary coil of the sensor is used as a inductance coil of an active oscillator; a pulse counter measures the oscillation frequency of the active oscillator, and transmits the measured result to a microprocessor circuit for logic comparison; the microprocessor circuit sends an alarm signal if the change of the oscillation frequency of the active oscillator reaches a preset value; one loop of direct current power supply is switched off if the alarm signals appear on the two loops of power output loops at the same time; and the parasitic loop exists between the two power output loops if the alarm signals disappear on the two loops of power output ...

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Номер записи: 8
24-06-2009 дата публикации

Fault information substation based on IEC 61850 and modeling approach thereof

Номер: CN0101465851A
Автор: WANG ZHONGMIN, XIONG CHAOYING, ZHENG YING, TU QI, ZHANG QIMING, JIANG ZIYING, ZHONGMIN WANG, CHAOYING XIONG, YING ZHENG, QI TU, QIMING ZHANG, ZIYING JIANG
Принадлежит:

The invention discloses a fault information substation based on IEC61850 and a modeling method thereof. The substation comprises a fault information substation based on IEC61850, a message client system and an actual device, and further comprises a system engine, a subscription center and an object space which are connected in sequence, a 61850 device connected with the object space, and a 61850 client system connected with the system engine. The invention is used in a transformer substation, and includes a communication modeling method used to establish communications with operators, inspectors, engineers, a protecting device, an oscillograph, other secondary devices, a network stored file server, a database system and a primary station of the transformer substation. The fault information substation supports the 61850 standard. The fault information substation based on IEC61850 and the modeling method thereof are based on the IEC 61850 standard and are object-oriented.

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Номер записи: 9
14-07-2010 дата публикации

Method for detecting earth fault of direct current system by utilizing frequency deviation method

Номер: CN0101776723A
Автор: DAI CHUNYI, FENG YUTING, LU WEI, WU JIANMIN, XIONG CHAOYING, YANG XIMING, CHUNYI DAI, YUTING FENG, WEI LU, JIANMIN WU, CHAOYING XIONG, XIMING YANG
Принадлежит:

The invention discloses a method for detecting earth fault of a direct current system by utilizing a frequency deviation method, belonging to electrical measurement field. The method is as follows: a sensor is arranged in a direct current output circuit to measure differential current flowing through the circuit of the sensor, the secondary of the sensor is utilized as the inductance coil of an active oscillator, a pulse counter is utilized for colleting the oscillation frequency of the active oscillator, and the oscillation frequency and the reference frequency of the active oscillator are compared by a microprocessor; if the frequency of the active oscillator is larger than a set value, a trigger signal is output and an alarming device is started to output an alarm signal; and field staff can rapidly find the position of an earth-return circuit according to the indication of an alarm lamp. The method not only overcomes the harm caused by that earth fault is searched by interrupting each ...

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Номер записи: 10