An Adaptive Test Frequency Selection Method for Power Cable Defect FDR Detection
摘要
In this paper, an adaptive test frequency selection method for power cable defect FDR detection is proposed to eliminate the competition between test frequency range and frequency sample resolution. The idea of the proposed method is to repeat the FDR test process with sets of dynamically adaptive test frequency ranges, which are obtained according to a rough FDR test result. Thus, with the proposed method, the performance of the defect location can be improved despite the limited hardware resource, namely limited frequency sample points. Both the simulated and experiment result show the proposed method is effective, and can be used to improve the fault diagnosis rate of the power cable defect.