电力系统保护与控制2018，Vol.46Issue(4)：120-128,中插1,10.DOI:10.7667/PSPC170163
同杆双回线路行波故障测距的关键问题研究
Research on key problems of traveling wave location of double-circuit lines on the same tower
摘要
Abstract
In order to improve the accuracy of traveling wave fault location of double-circuit line on the same tower, a new selection of fault traveling wave and a detection method are proposed for fault traveling wave selection and traveling wave detection. The coupling between each phase and each line of double-circuit line on the same tower is complex and multimode propagation characteristics after traditional phase mode transformation are of big difference. A new kind of phase transformation is adopted, which concludes the law of multimode component propagation and solves the difficult problem of traveling wave fault selection. There are some technical defects existing in the current traveling wave detection method. The variational mode decomposition after parameter optimization and Teager energy operator are combined to apply to traveling wave detection, realizing the adaptability of the travelling wave detection method with a good detection effect. Double-terminal traveling wave fault location algorithm is used to calculate fault location. A large number of simulation results verify the feasibility of the method and the accuracy of location results.关键词
同杆双回线路/行波测距/相模变换/变分模态分解/Teager能量算子Key words
double-circuit line on the same tower/traveling wave location/phase mode transformation/variational mode decomposition/Teager energy operator引用本文复制引用
闫红艳,高艳丰,王继选,高旭东..同杆双回线路行波故障测距的关键问题研究[J].电力系统保护与控制,2018,46(4):120-128,中插1,10.基金项目
河北省教育厅基金资助项目(ZD2014031) （ZD2014031）
邯郸市科学技术研究与发展计划项目(1721203048-1) （1721203048-1）
河北工程大学创新基金项目(17129033052)This work is supported by Foundation of Hebei Education Department (No. ZD2014031), Science and Technology R & D Program of Handan (No. 1721203048-1), Innovation Fund Program of Hebei University of Engineering (No. 17129033052). （17129033052）
