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MONITORING SYSTEM FOR DETECTING ERROR OF HARMONIC FILTER IN HIGH VOLTAGE DIRECT CURRENT (HVDC) SYSTEM, AND MONITORING METHOD THEREOF
MONITORING SYSTEM FOR DETECTING ERROR OF HARMONIC FILTER IN HIGH VOLTAGE DIRECT CURRENT (HVDC) SYSTEM, AND MONITORING METHOD THEREOF
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机译:高压直流电系统谐波滤波器误差的监测系统及其监测方法
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摘要
A monitoring system (10) for detecting an error of a harmonic filter (100) in a high voltage direct current (HVDC) transmission system is disclosed. The monitoring system comprises a harmonic filter (100) comprising one or more capacitor units, a monitoring sensor unit (200) sensing a voltage of at least one of the one or more capacitor units, and, a control unit (300) monitoring a voltage error of the at least one capacitor unit using the sensing result. The control unit (300) monitors the voltage error by comparing a reference voltage value of the first capacitor unit (111) with its actual voltage value or by using the voltage imbalance between the first capacitor unit (111) and at least one capacitor unit excluding the first capacitor unit (111) among the one or more capacitor units.
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