Application of Transient Traveling Wave Technology in Fault Location and Condition Monitoring of Collecting Line in Wind Farm

This paper mainly studies a multi terminal traveling wave fault location scheme of distribution network using path search method. First, a new matrix expression of distribution network topology is constructed. Through broken line search in the matrix, all shortest propagation paths of transient fault traveling wave are found, and then all transient traveling wave signals collected at each end of the distribution network are integrated to achieve accurate fault location. This paper has the advantages of quickly and accurately determining the fault location, reducing the workload of manual line patrol, and improving the efficiency of fault finding.