一种高压串补阻尼回路故障诊断方法研究

Research on Fault Diagnosis Algorithm for High Voltage Series Compensation Damping Circuit

文章提出了基于火花间隙电流检测的高压串补阻尼回路状态诊断方法,包括通过采样火花间隙导通时刻的电流,同相的线路电流,计算阻尼回路频率,从理论推导出了实时计算阻尼回路中阻尼电阻阻值计算方法,同时结合实际工程应用设计了计算程序并进行了验证。

This paper proposes the status diagnosis algorithm for high voltage series compensation damping circuit based on spark gap current detection. It includes the damping circuit frequency calculation via real time line current and spark gap currents sampling on the same phase when it conducted. The real time resistance cal-culation algorithm of damping circuit resistor is analyzed theoretically; meanwhile this algorithm is verified by computer software program based on project application. This paper innovatively proposes the fault detection and protection for high voltage series compensation damping circuit which is installed in the high voltage power sys-tem widespread.