基于阈值的混合电网开关故障诊断方法

Threshold-based Switch Fault Diagnosis Method for Hybrid Power Grid

在智能电网中,为了提高电网的工作效率,需要实现快速故障诊断。因此,提出了一种提高混合电网开关故障诊断性能的阈值计算方法。通过使用瞬时相电流代替平均相电流的阈值点进行计算,该方法可以在4 ms内检测到开关故障。在实验部分,验证了所提出的方法的性能,实验结果表明,提出的方法能够满足实际需求。

In the smart grid,in order to improve the efficiency of the grid,it is necessary to realize rapid fault diagnosis.Therefore,a threshold calculation method is proposed to improve the fault diagnosis performance of the hybrid power grid switch.This method calculates the instantaneous phase current instead of the threshold point of the average phase current.This method can detect the switch failure within 4ms.In the experimental part,the performance of the proposed method is verified,and the experimental results show that the proposed method can meet the actual needs.