四川轻化工大学学报（自然科学版）2025，Vol.38Issue(6)：69-78,10.DOI:10.11863/j.suse.2025.06.08
基于Kendall相关系数的新能源场站送出线路纵联保护
Pilot Protection of New Energy Station Transmission Line Based on Kendall Correlation Coefficient
摘要
Abstract
In order to solve the problem of misoperation and rejection based on power frequency protection method,a new method of pilot protection for the outgoing line of new energy station is proposed to ensure the reliable operation of the outgoing line of new energy station.Firstly,the characteristics of the output fault transient current of synchronous generator and inverter power supply are analyzed,and the fault transient current of the new energy side and the system side is significantly different when the fault occurs inside and outside the outgoing line.Secondly,a new method of pilot protection based on Kendall correlation coefficient is proposed.Finally,the outgoing circuit model of the new energy station is built in PSCAD/EMTDC,and the proposed method is verified under various working conditions such as 10 dB noise interference and 100 Ω transition resistance.The simulation results show that the proposed protection method can identify 100%faults in and out of the area under various working conditions,and has good protection performance.关键词
Kendall相关系数/纵联保护/新能源场站/送出线路Key words
Kendall correlation coefficient/pilot protection/new energy station/transmission line分类
信息技术与安全科学引用本文复制引用
邓力川,吴浩,李小鹏..基于Kendall相关系数的新能源场站送出线路纵联保护[J].四川轻化工大学学报（自然科学版）,2025,38(6):69-78,10.基金项目
四川省科技厅项目(2022YFS0518) （2022YFS0518）
国网四川省电力公司科技项目(521997230003) （521997230003）
