发明名称 |
Filtering method for capacitive voltage transformers |
摘要 |
A method of digitally correcting the raw output voltage (605) from a Capacitive Voltage Transformer (CVT) with the intent to remove transient components impacting on transient accuracy of protection function. A typical CVT is represented using three parameters in the linear CVT model. A digital filter (608) designed based on the three parameters and incorporating a dedicated mechanism to ensure numerical stability of the former. A method of self-adjusting the said filter based on system events and performed after the method has been deployed in the field and supplied from a specific CVT. |
申请公布号 |
EP1976119(B1) |
申请公布日期 |
2016.11.09 |
申请号 |
EP20080153124 |
申请日期 |
2008.03.20 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
KASZTENNY, BOGDAN Z.;PREMERLANI, WILLIAM JAMES;RADUCANU, IULIAN |
分类号 |
H03H17/00;G01R15/16;H03H17/02;H03H17/04 |
主分类号 |
H03H17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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