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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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30-05-2023 дата публикации

Method for improving quick-break protection performance of asynchronous motor

Номер: CN116191358A
Автор: LI HUI, SONG QINGLIN, LIU HONGBING, CHEN DEKAI, XIE TIANZHU, OUYANG JINSONG, YANG LIU, LI YINGZHUO, HU SHUYI, ZOU XUEXIANG, MIAO JI, CHEN WENHAI, CHEN HAIXI, WU QINGRU, LI QINGXUAN, ZHANG YONGMING, ZHANG CHUNGANG, SUN XI, XIE YIFENG, ZI RONGTAO, SONG CHANGYONG, LEI XINGYU, YANG SHOUQUAN, PENG LIDAN, XU YUE, YIN RAOFANG, FENG YAOYU, CHEN JIONG, DUAN YANQING, CHENG PENG, SHEN JI, ZHOU YING, TANG QIANG, ZHANG WEI, LUO XINYU, FENG MENG, LIU ZHIHONG, CHEN MING, ZHANG NANHUI, YANG PENGJIE, LI LEI, ZHANG GUOWU, ZHU SHENG, JIAO BO, LI RUI, JIANG QIUNAN, YANG JINGHUA, QIAN QINGWEI, ZHANG XIAO
Принадлежит:

The invention discloses a method for improving quick-break protection performance of an asynchronous motor. The method comprises the steps that a device automatically optimizes a constant value; measuring the electrical quantity of the motor in operation; the quick-break protection constant value is continuously optimized, so that the device constant value is optimal; according to the method for improving the quick-break protection performance of the asynchronous motor, the purpose of reducing a quick-break protection current constant value is achieved, so that it is ensured that a fault is rapidly removed when the motor breaks down, and a novel nonlinear fractional order PID sliding mode surface is constructed in combination with a nonlinear function; the problems of low control precision, low response speed and the like of the traditional fractional order PID sliding mode surface in a sliding state are solved; a sliding mode reaching law is used by using a self-adaptive superhelix algorithm ...

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Номер записи: 1
06-06-2023 дата публикации

Current quick-break protection method without being matched with starting current of motor

Номер: CN116231589A
Автор: LI HUI, SONG QINGLIN, LIU HONGBING, CHEN DEKAI, XIE TIANZHU, OUYANG JINSONG, YANG LIU, LI YINGZHUO, HU SHUYI, ZOU XUEXIANG, MIAO JI, CHEN WENHAI, CHEN HAIXI, WU QINGRU, LI QINGXUAN, ZHANG YONGMING, ZHANG CHUNGANG, SUN XI, XIE YIFENG, ZI RONGTAO, SONG CHANGYONG, LEI XINGYU, YANG SHOUQUAN, PENG LIDAN, XU YUE, YIN RAOFANG, FENG YAOYU, CHEN JIONG, DUAN YANQING, CHENG PENG, SHEN JI, ZHOU YING, TANG QIANG, ZHANG WEI, LUO XINYU, FENG MENG, LIU ZHIHONG, CHEN MING, ZHANG NANHUI, YANG PENGJIE, LI LEI, ZHANG GUOWU, ZHU SHENG, JIAO BO, LI RUI, JIANG QIUNAN, YANG JINGHUA, QIAN QINGWEI, ZHANG XIAO, TANG SHIYIN, HUANG ZHIHUA, SU DONGPING, LI XIONGLIANG, CHEN MENGYUAN, HE YUFENG, HUANG XIANG, MAO XUN, HOU RUIWEN, ZHANG JUNYUN, KONG ZHEN, YU XIAO, HU YU, LIU BO, YANG XINYU, LI JUCHENG, LU SHIMA, YANG RUIHUA, LI HAITAO, YAN FENG, LI YUEHAO, WANG YUNKAI, YANG YI, ZHENG TAO, LIU SHAOJUN, SONG YUANYUAN, YAN DINGQIANG, PAN WEIDONG, WANG GUOHAI
Принадлежит:

The invention discloses a current quick-break protection method without matching with a motor starting current. The method comprises the following steps: setting a motor current quick-break protection fixed value; a motor protection device constant value setting calculation mode; measuring the effective value of the electric quantity in the starting process of the motor and storing data; determining the change rate of the motor starting current relative to time in the starting process; calculating a current quick-break protection constant value and verifying the sensitivity; and the generated current quick-break protection constant value is stored in a read-only memory EEPROM and is called by a device relay protection module program. By utilizing the difference of the motor starting current and the short-circuit fault current in the aspect of change rate, the current quick-break protection of the relay protection device does not need to be matched with the motor starting current, so that ...

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Номер записи: 2