电力系统保护与控制2024，Vol.52Issue(3)：172-179,8.DOI:10.19783/j.cnki.pspc.230768
抑制分布式静止串联补偿器对线路保护影响的方法研究
Method of suppressing the influence of distributed static series compensator on line protection
摘要
Abstract
A distributed static series compensator(DSSC)can change the power of a transmission line by adjusting the voltage injected into the line to optimize the power flow distribution of the power grid.In response to the problem that existing AC line protection algorithms are difficult to adapt to the operation of a DSSC,a method to suppress the influence of the DSSC on line protection is proposed.First,the impact of a DSSC on AC line protection is analyzed,and it is proved that the injection voltage of the DSSC may change the impedance measurement value of distance protection,leading to the risk of the protection rejecting or mis-operating.Then,a method to quickly bypass the DSSC using the overcurrent protection of the DSSC,or to actively reduce the injection voltage of the DSSC to 0 based on fault auxiliary criteria is proposed.This is to suppress the impact of the DSSC on line protection during different types of line faults.Finally,based on the hardware-in-the-loop RTDS real-time simulation platform and on-site testing of the Zhejiang Huzhou DSSC demonstration project,the effectiveness of the proposed method is verified.关键词
分布式静止串联补偿器/线路保护/距离保护Key words
distributed static series compensators/line protection/distance protection引用本文复制引用
潘磊,马秀达,林艺哲,谢华,吴飞翔,任铁强..抑制分布式静止串联补偿器对线路保护影响的方法研究[J].电力系统保护与控制,2024,52(3):172-179,8.基金项目
This work is supported by the Science and Technology Project of the Headquarters of the State Grid Corporation of China(No.5100-202255005A-1-1-ZN). 国家电网公司总部科技项目资助(5100-202255005A-1-1-ZN) （No.5100-202255005A-1-1-ZN）
