背靠背换流站换相失败仿真分析  

Commutation Failure Simulation of Back-to-Back Converter Station

作　　者：余晓鹏[1] 蒋建东[2] 张博[1] 周勇[2] 

机构地区：[1]国网河南省电力公司电力科学研究院,郑州450052 [2]郑州大学电气工程学院,郑州450001

出　　处：《西南大学学报（自然科学版）》2016年第5期182-186,共5页Journal of Southwest University(Natural Science Edition)

基　　金：河南省科学技术研究重点项目(14A470002)

摘　　要：开展背靠背系统换相失败的研究,对防止换相失败的发生及减小换相失败对系统运行的影响具有十分重要的意义.介绍了换相失败及引起换相失败的原因,分析了换相失败的过程.在PSCAD/EMTDC中对灵宝换流站换相失败进行了仿真,分析了换相失败后直流电压、直流电流、直流功率、逆变侧交流母线电压、整流侧触发角、逆变侧关断角的变化情况.仿真结果可以为制定避免换相失败或控制换相失败发展的措施提供参考.Commutation failure simulation of back-to-back converter is an important research to prevent commutation failure and reduce its influence on system operation. In this paper, the commutation failure mechanism is introduced, and the commutation failure process is analyzed. Commutation failure in Lingbao Converter Station is simulated in PSCAD/EMTDC. The DC voltage, DC current, DC power, inverter AC bus voltage, the rectifier trigger angle and inverter turn-off angle are given. The simulation results can help to develop effective measures for avoiding commutation failure or preventing the influence of commu- tation failure.

关 键 词：背靠背换流站 直流电压 换相失败 仿真 

分 类 号：TM743[电气工程—电力系统及自动化]