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1. 发明授权

US5301121A Measuring electrical parameters of power line operation, using a digital computer 失效
标题翻译：测量电力线操作的电气参数，使用数字电脑
公开(公告)号：US5301121A
公开(公告)日：1994-04-05
申请号：US728408
申请日：1991-07-11
申请人： Steven L. Garverick , Kenji Fujino , Masaaki Nishijo , Masami Imamoto
发明人： Steven L. Garverick , Kenji Fujino , Masaaki Nishijo , Masami Imamoto
IPC分类号： G01R22/00 , G01R19/00 , G01R19/25 , G01R21/133 , G01R35/04 , H02J3/00
CPC分类号： G01R21/1331 , G01R19/25 , G01R35/04
摘要： A method for measuring at least one electrical parameter of the operation of a p-phase power line, p being a positive integer, arranges respective sensing apparatus to sense at least one of the voltages and currents associated with each phase of the power line. Analog-to-digital conversion apparatus is used to digitize the response of each sensing apparatus, thereby to generate corresponding digital responses. A digital computer is used to correct each digitized response of the analog-to-digital conversion apparatus for non-linearities, gain errors and phasing errors in the responses of the sensing apparatus and for non-linearities and gain errors in the responses of the analog-to-digital conversion apparatus. The computer is used to high-pass digitally filter each digital response that has been corrected, in order to suppress any attendant direct term. The digital computer then calculates each the electrical parameter, proceeding from each digital response that has been corrected and has been high-pass digitally filtered.
摘要翻译：一种用于测量p相电力线的操作的至少一个电参数的方法，p是正整数，布置各个感测装置以感测与电力线的每个相位相关联的电压和电流中的至少一个。模拟数字转换装置用于数字化每个感测装置的响应，从而产生相应的数字响应。使用数字计算机来校正模数转换装置的每个数字化响应，用于感测装置的响应中的非线性，增益误差和相位误差，以及模拟的响应中的非线性和增益误差数字转换装置。计算机用于高通数字过滤每个已被纠正的数字响应，以便抑制任何随之而来的直接期限。然后，数字计算机计算每个电参数，从已经被校正并已被高通数字滤波的每个数字响应开始。

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