公开(公告)号：US09755656B2

公开(公告)日：2017-09-05

申请号：US15003728

申请日：2016-01-21

申请人： LSIS CO., LTD.

发明人： Jiung Kim

IPC分类号： H03K5/00 ,  H02H3/00 ,  H03M1/12 ,  H02H1/00 ,  H02H1/04 ,  H02H3/52 ,  G01R19/02 ,  G01R19/25

CPC分类号： H03M1/12 ,  G01R19/02 ,  G01R19/2509 ,  H02H1/0092 ,  H02H1/04 ,  H02H3/52

摘要： The present disclosure relates to provide an active erroneous sample elimination device or erroneous sample elimination method for a relay capable of correctly implementing erroneous sample elimination processing even during a plurality of electrical disturbances mixed with an electrical quantity detection signal, and a digital protective relay according to the present disclosure may include a converter that samples an analog signal and converts the sampled signal to a digital signal; and a processor that searches an inflection point at which an electrical variation quantity varies from an increase to a decrease or from a decrease to an increase based on the digital signal, and compares an electrical variation quantity prior to and subsequent to the inflection point with a preset electrical quantity.

公开(公告)号：US20160233876A1

公开(公告)日：2016-08-11

申请号：US15003728

申请日：2016-01-21

申请人： LSIS CO., LTD.

发明人： Jiung Kim

IPC分类号： H03M1/12 ,  G01R19/02

CPC分类号： H03M1/12 ,  G01R19/02 ,  G01R19/2509 ,  H02H1/0092 ,  H02H1/04 ,  H02H3/52

摘要： The present disclosure relates to provide an active erroneous sample elimination device or erroneous sample elimination method for a relay capable of correctly implementing erroneous sample elimination processing even during a plurality of electrical disturbances mixed with an electrical quantity detection signal, and a digital protective relay according to the present disclosure may include a converter that samples an analog signal and converts the sampled signal to a digital signal; and a processor that searches an inflection point at which an electrical variation quantity varies from an increase to a decrease or from a decrease to an increase based on the digital signal, and compares an electrical variation quantity prior to and subsequent to the inflection point with a preset electrical quantity.

摘要翻译： 本公开涉及提供即使在与电量检测信号混合的多个电力干扰期间能够正确地执行错误取样处理的继电器的有源错误取样装置或错误取样方法，以及根据 本公开可以包括对模拟信号进行采样并将采样的信号转换为数字信号的转换器; 以及处理器，其基于数字信号搜索电变化量从增加到降低或从降低到增加的拐点，并且将拐点之前和之后的电变化量与 预设电量。