可控型混合无功功率补偿线路TRV抑制措施  

TRV Suppression Measures of Controllable Hybrid Reactive Power Compensation Lines

作　　者：孟凡涛 何柏娜[1] 李辉 吴硕 刘洋[1] 代维汉 王硕 董彦辰 MENG Fantao;HE Baina;LI Hui;WU Shuo;LIU Yang;DAI Weihan;WANG Shuo;DONG Yanchen(College of Electrical and Electronic Engineering,Shandong University of Technology,Zibo,Shandong 255000,China;China Electric Power Research Institute Co.,Ltd.,Wuhan 430000,China;State Grid Shandong Zibo Power Supply Company,Zibo,Shandong 255000,China)

机构地区：[1]山东理工大学电气与电子工程学院,山东淄博255000 [2]中国电力科学研究院有限公司,武汉430000 [3]国网山东淄博供电公司,山东淄博255000

出　　处：《南方电网技术》2025年第2期165-175,共11页Southern Power System Technology

基　　金：国家重点研发计划资助项目(2021YFB2401104);山东省自然科学基金项目(ZR2021ME057);山东省研究生教育质量提升计划项目(SDYAL2022114)。

摘　　要：可控型混合无功补偿对输电线路暂态特性的影响亟待研究。与常规输电线路相比,安装可控型混合无功补偿的特高压交流输电线路断路器实际开断条件更加苛刻,对系统绝缘造成极大威胁。以特高压可控型混合无功补偿线路瞬态恢复电压最严重超标状况为研究对象,建立了特高压混合无功补偿线路单相接地故障等效模型,分析了瞬态恢复电压的影响因素,提出了可控型混合无功补偿线路瞬态恢复电压(transient recovery voltage,TRV)的抑制措施;采用等值参数集中电路理论分析与PSCAD/EMTDC仿真结合,探讨了快速联动旁路串补、断路器加装分闸电阻以及安装快速接地开关等方法对瞬态恢复电压的抑制效果以及可行性,并得到了可控型混合无功补偿线路瞬态恢复电压最佳抑制措施,研究成果可以为特高压工程建设提供实际参考。The influence of controllable hybrid reactive power compensation on the transient characteristics of transmission lines needs to be studied urgently.Compared with conventional transmission lines,the actual breaking conditions of ultra high voltage(UHV)transmission line circuit breakers with controllable hybrid reactive power compensation are more stringent,which pose a great threat to system insulation.The most serious over-standard condition of transient recovery voltage of UHV controllable hybrid reac-tive power compensation line is taken as the research object.An equivalent model for single-phase grounding faults in UHV hybrid reactive power compensation lines is established,and the influencing factors of transient recovery voltage are analyzed.The transient recovery voltage(TRV)suppression measure of controllable hybrid reactive power compensation line is proposed.By combining the theoretical analysis of equivalent parameter lumped circuit with PSCAD/EMTDC simulation,the suppression effects and feasibility of fast linkage bypass series compensation,circuit breaker with opening resistance,and fast grounding switch on transient recovery volt-age are discussed,and the best suppression measure of transient recovery voltage is obtained,which provides a practical reference for UHV engineering construction.

关 键 词：特高压 可控型混合无功补偿 单相接地故障 瞬态恢复电压 抑制措施 

分 类 号：TM471[电气工程—电器] TM721