An automatic test method for flexible direct current leg differential protection

The invention discloses an automatic test method for flexible direct current leg differential protection. Through manually introducing the flexible direct current leg differential protection logic fixed value, short circuit failure calculating is automatically performed according to the protection f...

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Bibliographische Detailangaben
Hauptverfasser:	WANG DONGPENG, GUO JUNBO, CHEN YAN, HE XIAOYAN, CAI LUXUAN, XIAO LEISHI, DONG HUALIANG, LIN FENG, WANG ZHICHUN, WANG JUNFEI, YOU YIPENG, WANG HONGXING, LUO BIN, XIANG QIAN, FAN DAOQING, ZHANG BAN, HUANG KEFENG, LI WENBO, PAN JING, ZHANG JIAN, ZHENG SHAOHONG, SU XIAOYI, ZHENG KUNWEI, CHEN JIANDONG, LIU WENJIA, CHEN TAO, JIANG QINGLEI, FENG HANQUAN, LIN ZHONGKAI, LIN ZIHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	The invention discloses an automatic test method for flexible direct current leg differential protection. Through manually introducing the flexible direct current leg differential protection logic fixed value, short circuit failure calculating is automatically performed according to the protection fixed value and the protection action equation, after the calculating is finished the size of the measured electric current value required for the differential protection calculating is reasonably configured, and the differential protection reliable action condition can be satisfied by the electric current value. The electric current signal satisfying the differential protection action is applied to the flexible direct current protection by a differential protection test module, whether the differential protection action is the reliable action or not is judged through obtaining the protection outlet information of the flexible direct current protection, and the protection outlet time \|T2-T1\|can be automatically calc