公开(公告)号：US5798932A

公开(公告)日：1998-08-25

申请号：US651178

申请日：1996-05-21

申请人： William James Premerlani ,  Mark Gerard Adamiak ,  Dingari Sreenivas ,  Eyyunni Venugopal

发明人： William James Premerlani ,  Mark Gerard Adamiak ,  Dingari Sreenivas ,  Eyyunni Venugopal

IPC分类号： H02H1/00 ,  H02H7/26 ,  G01R31/08 ,  H02H3/38

CPC分类号： H02H1/0092 ,  H02H7/26

摘要： A digital decaying current offset correction method and apparatus, in one aspect, separates the requirements of detecting fault existence from the requirements of detecting fault location. Once the decaying offset removal routine is initiated, current and voltage are sampled and, for each current and voltage sample, current and voltage phasors are generated. The current phasor values, which are not offset corrected, may be used to determine whether to trip a breaker. Once the breaker is tripped, the decaying offsets are removed from the current phasors. The offset corrected current phasors are then used to locate the fault.

摘要翻译： 数字衰减电流偏移校正方法和装置，在一个方面，将检测故障存在的要求与检测故障定位的要求分开。 一旦开始衰减偏移去除程序，则对电流和电压进行采样，并且对于每个电流和电压采样，产生电流和电压相量。 可以使用未校正的当前相量值来确定是否跳闸。 一旦断路器跳闸，衰减的偏移量从当前相量中移除。 然后使用偏移校正的电流相量来定位故障。