电网故障诊断新方法的研究

阐述了快速、准确识别电网故障的必要性,提出了以3次B样条小波为分解工具,通过分解故障线路电流确定故障时刻及故障切除时刻的新方法。分析了利用二进小波确定故障线路的新思想,大量仿真论证了在各种故障模式下所提出算法的有效性和准确性。

Research on New Method of Power Grid Faulty Diagnosis

The necessity to distinguish power grid fault fast and accurately is expounded.A new wav of taking cubic B-spline wavelet as analysis tool is put forward,which determines fault time and fault clearing time through the decomposition of fauhy transmission line current.A new scheme for using dyadic wavelet to detect fault line is analyzed.Extensive simulation results demnnstrate that the validity and accuracy of the algorithm proposed in this paper under a series of faulty mode.