调相机故障诊断及研究进展

Progress and Research in Fault Diagnosis of Synchronous Condenser

同步调相机因其优秀的无功响应能力逐渐成为直流特高压(UHVDC)输电系统无功补偿设备的最优选择。新型同步调相机在使用过程中,不可避免地会出现各种故障,如绕组匝间短路故障、转子偏心故障和轴承故障等。但目前对同步调相机的故障诊断研究仍然较少。因此,本文对同步调相机的定子绕组匝间短路故障、转子绕组匝间短路故障、转子偏心故障、水路堵塞故障和轴承故障等的产生原因、故障特征和诊断方法进行了总结,并分析了各种故障诊断方法的特点,指出了同步调相机故障诊断领域存在的挑战和发展趋势。

Synchronous condensers have gradually become the optimal choice for reactive power compensation equipment in DC ultra-high voltage(UHVDC)transmission systems due to their excellent reactive power response capability.During the use of the new synchronous condenser,various faults will inevitably occur,such as winding inter-turn short circuit fault,rotor eccentricity fault and bearing fault.But there is still little references on fault diagnosis technology for synchronous condensers.Therefore,the causes,fault characteristics and diagnosis methods of stator winding inter-turn short circuit fault,rotor winding inter-turn short circuit fault,rotor eccentricity fault,waterway blockage fault and bearing fault of synchronous condenser are summarized,and the characteristics of various fault diagnosis methods are analyzed.The challenges and development trends in the field of fault diagnosis for synchronous condensers are pointed out.