电力系统保护与控制2011，Vol.39Issue(10)：121-125,5.
一起消弧线圈控制装置异常动作事件分析及改进措施
Analvsis on abnormal action of an arc suppression coil's control device and its improvement
李晓波 1张长彦 2王崇林1
作者信息
- 1. 中国矿业大学信息与电气工程学院,江苏,徐州,221008
- 2. 许继电气有限公司,河南,许昌,461000
- 折叠
摘要
Abstract
The paper first analyzes the abnormal action of some automatic tracking and compensation arc suppression coil(ASC) in the field and then points out that the reason causing the abnormal action is that the criterion the ASC used to judge the disappearance of the single phase to ground fault (SPGF) is too simple.By doing simulations and analyzing the zero-sequence voltage of neutral point to ground via ASC system after the disappearance of SPGF, the author puts forward a criterion based on the abrupt-changed zero-sequence voltage.The proposed criterion can be used not only for the pre-setting ASC but also the post-setting ASC.Using the ameliorated criterion to realize the appropriate control of the damping resistor of the pre-setting ASC, the abnormal action of the ASC is solved.The results of field operation and the simulation prove the validity of the new control method.关键词
消弧线圈/自动跟踪补偿/零序电压突变量/单相接地故障Key words
ASC/ automatic tracking and compensation/ abrupt-changed zero-sequence voltage/ single phase to ground fault分类
信息技术与安全科学引用本文复制引用
李晓波,张长彦,王崇林..一起消弧线圈控制装置异常动作事件分析及改进措施[J].电力系统保护与控制,2011,39(10):121-125,5.
