发明名称 |
FUZZY INTERFERENCE RELAY AND METHOD FOR CURRENT DIFFERENTIAL PROTECTION OF A TRANSMISSION LINE |
摘要 |
A relay for current differential protection of a transmission line, comprising: a first calculator of symmetrical sequence components of currents of each phase of the transmission line at local and remote ends of the transmission line; a second calculator of phase differencesφ12 andφ012 between combinations currents i12 and i012 of the symmetrical sequence currents; a fuzzy inference system which outputs a variable y whose value is calculated according to the values of the phase differencesφ12 andφ012; a third calculator which outputs a tripping signal for the control of a circuit breaker arranged on the transmission line and associated with the relay, the value of the tripping signal being calculated according to the values of the variable y and the values of the currents of each phase at the local and remote ends of the protected transmission line.
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申请公布号 |
US2012224287(A1) |
申请公布日期 |
2012.09.06 |
申请号 |
US200913509983 |
申请日期 |
2009.11.17 |
申请人 |
REBIZANT WALDEMAR;SOLAK KRZYSZTOF;WISZNIEWSKI ANDRZEJ;KLIMEK ANDRZEJ;SCHNEIDER ELECTRIC ENERGY UK LTD.;ALSTOM TECHNOLOGY LTD. |
发明人 |
REBIZANT WALDEMAR;SOLAK KRZYSZTOF;WISZNIEWSKI ANDRZEJ;KLIMEK ANDRZEJ |
分类号 |
H02H3/26 |
主分类号 |
H02H3/26 |
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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