基于相关分析的同杆双回线故障序分量选相研究

提出一种基于相关分析的同杆双回线故障分量选相元件,采用六序复合序网法作为基本的分析方法。六序复合序网直观地反映了同杆双回线各种故障时六序故障分量之间的相位关系和幅值关系,为故障选相提供了简单、方便的手段。相关分析法应用于故障选相可以迅速、准确地反映故障分量之间的相位关系。通过大量的仿真计算,验证了该原理的正确性和有效性。

Research on superimposed phase selector for double circuit lines on the same tower

A fault phase selector for double circuit lines on the same tower based on superimposed sequential components and correlation analysis is put forward in the paper, interconnection of six sequence networks(ISSN) is employed as a basic analysis method. The method is simple in fault selecting, and relations of phase angle and amplitude among six-sequence components are displayed directly in the ISSN. At last, the simulation results prove the method is correct and valid.