发明授权
- 专利标题： Device for numerical computation of a symmetrical component of an electtical quantity of a three-phase power system and relay incorporating it
- 专利标题（中）： 用于三相电力系统的电量的对称分量和并入其的继电器的数值计算的装置
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申请号： US161399申请日： 1993-12-06
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公开(公告)号： US5426590A公开(公告)日： 1995-06-20
- 发明人: Eric Martin
- 申请人： Eric Martin
- 申请人地址： FRX
- 专利权人： Merlin Gerin
- 当前专利权人： Merlin Gerin
- 当前专利权人地址： FRX
- 优先权： FRX9215355 19921217
- 主分类号： H02H3/34
- IPC分类号： H02H3/34 ; G01R29/16
摘要：
The computing device comprises non-recursive, digital filters, with finite impulse response, computing, from samples taken over a period of the power system, for at least two distinct phases, two components with a phase difference of 90.degree. between them and representative of the quantity involved in the phase involved. A matrix computation using a two-dimensional rotation matrix enables the components with a 90.degree. phase difference of the inverse component to be deduced therefrom.
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