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公开(公告)号:US09804209B2
公开(公告)日:2017-10-31
申请号:US14382058
申请日:2012-02-29
申请人: Andreas Litzinger , Stefan Piel
发明人: Andreas Litzinger , Stefan Piel
CPC分类号: G01R21/006 , G01R23/02 , H02J3/04 , H02J13/0006 , H02J13/001 , H02J2003/388 , Y02E60/74 , Y04S10/30 , Y04S10/40
摘要: A method and a device are provided for monitoring an electrical power supply network. A temporal frequency change value is determined for at least two sections or for at least two points of the power supply network. The frequency change value indicates the respective temporal frequency change of the network frequency. A conclusion is drawn regarding a possible islanding within the power supply network, and a warning signal which indicates the possible islanding within the power supply network is generated when the difference between the frequency change values, exceeds a predetermined frequency change threshold value.
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公开(公告)号:US20150008898A1
公开(公告)日:2015-01-08
申请号:US14382058
申请日:2012-02-29
申请人: Andreas Litzinger , Stefan Piel
发明人: Andreas Litzinger , Stefan Piel
CPC分类号: G01R21/006 , G01R23/02 , H02J3/04 , H02J13/0006 , H02J13/001 , H02J2003/388 , Y02E60/74 , Y04S10/30 , Y04S10/40
摘要: A method and a device are provided for monitoring an electrical power supply network. A temporal frequency change value is determined for at least two sections or for at least two points of the power supply network. The frequency change value indicates the respective temporal frequency change of the network frequency. A conclusion is drawn regarding a possible islanding within the power supply network, and a warning signal which indicates the possible islanding within the power supply network is generated when the difference between the frequency change values, exceeds a predetermined frequency change threshold value.
摘要翻译: 提供了一种监测电力供应网络的方法和装置。 为电源网络的至少两个部分或至少两个点确定时间频率变化值。 频率变化值表示网络频率的各自的时间频率变化。 得出关于供电网络内可能的孤岛化的结论,并且当频率变化值之间的差异超过预定的频率变化阈值时,产生指示电源网络内可能的孤岛化的警告信号。
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