针对带并联电抗器的超高压线路,分析了故障跳开相恢复电压公式,详细推导了故障跳开相恢复电压的工频分量幅值、自由分量幅值及自由分量频率,理论分析及EMTDC仿真实验证明了推导结果的正确性,基于此提出采用恢复电压的拍频特性作为无故障判据,该无故障识别方法具有很强的实用性,为带并联电抗器输电线路采用单相自适应重合闸提供了一种非常简单可靠的方案。 For the EHV line with shunt reactor, the formula of recovery voltage of fault tripped phase is analyzed, the amplitude of power frequency component, free component amplitude and free component frequency of fault recovery phase are deduced in detail, and theoretical analysis and EMTDC simulation The experiment proves the correctness of the derivation result. Based on this, the beat-frequency characteristic of the recovery voltage is proposed as a fault-free criterion. The method has the strong practicability and adopts the single-phase adaptive coincidence for the transmission line with shunt reactors Brakes provide a very simple and reliable solution.