发明申请
US20080238215A1 METHOD, MEMORY MEDIA AND APPARATUS FOR DETECTION OF GRID DISCONNECT
失效
方法，用于检测网格断开的记忆介质和装置
- 专利标题： METHOD, MEMORY MEDIA AND APPARATUS FOR DETECTION OF GRID DISCONNECT
- 专利标题（中）： 方法，用于检测网格断开的记忆介质和装置
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申请号： US10713310申请日： 2003-11-14
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公开(公告)号： US20080238215A1公开(公告)日： 2008-10-02
- 发明人: Zhihong Ye , Pengwei Du
- 申请人： Zhihong Ye , Pengwei Du
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 主分类号： H02B1/24
- IPC分类号： H02B1/24
摘要：
A phase shift procedure for detecting a disconnect of a power grid from a feeder that is connected to a load and a distributed generator. The phase shift procedure compares a current phase shift of the output voltage of the distributed generator with a predetermined threshold and if greater, a command is issued for a disconnect of the distributed generator from the feeder. To extend the range of detection, the phase shift procedure is used when a power mismatch between the distributed generator and the load exceeds a threshold and either or both of an under/over frequency procedure and an under/over voltage procedure is used when any power mismatch does not exceed the threshold.
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