首页> 外国专利> Method of fault phase selection and fault type determination

Method of fault phase selection and fault type determination

机译:故障选相和故障类型确定的方法

摘要

The present invention is concerned with a method for faulted phase selection and fault type determination in electric power lines applicable both to series compensated and uncompensated power lines. The method comprising a fault inception detection and an estimation of fault phase current signals, pre-fault current signals and zero-sequence current in order to receive the absolute value of incremental current signals and their maximum value from which real value indicators for phase to phase faults, real value indicators for 3-phase fault and a real value indicator for ground fault are determined. The method further comprisescalculating the maximum of the value of all fault type indicators (Fflt),determining the fault type, which determines the fault type on the basis that the index (flt) means the specific type of fault indicated by the value of f andpresenting the real fault type indicator (Fmax).
机译:本发明涉及一种用于电力线中的故障相选择和故障类型确定的方法,该方法适用于串联补偿和未补偿的电力线。该方法包括故障开始检测以及故障相电流信号,故障前电流信号和零序电流的估计,以便接收增量电流信号的绝对值及其最大值,并从中获得相间的实际值指示确定故障,三相故障的实际值指示器和接地故障的实际值指示器。该方法进一步包括 计算所有故障类型指示器(F flt )的最大值, 确定故障类型,根据索引(flt)表示由flt值指示的特定故障类型来确定故障类型;和 表示实际的故障类型指示器(F max )。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号