静止无功补偿器改善特高压直流运行性能仿真研究  

Research on simulation of improving operation performances of UHVDC transmission system using SVCs

作　　者：胡铭[1] 金小明[2] 田杰[1] 高鹏[1] 蔡汉生[2] 许爱东[2] 吴小辰[2] 陈松林[1] 

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211100 [2]中国南方电网公司技术研究中心,广东广州510623

出　　处：《中国电力》2009年第3期35-39,共5页Electric Power

基　　金：“十一五”国家科技支撑计划“特高压输变电系统开发与示范”项目(2006BAA02A17,2006BAA02A30)

摘　　要：云南—广东±800kV特高压直流输电系统送端孤岛运行方式下,由于送端系统较弱,直流系统投切交流滤波器或电容器将会在换流母线上产生较大的电压波动,影响直流系统运行。利用实时数字仿真器(RTDS)和南瑞继保公司开发的直流控制保护系统建立了云南—广东±800kV特高压直流输电系统闭环实时数字仿真系统,在此基础上对特高压直流输电工程中应用静止无功补偿器(SVC)抑制换流母线电压波动问题进行了详细的研究。仿真结果表明,利用SVC能够很好地抑制投切交流滤波器或电容器引起的换流母线电压波动,改善特高压直流输电系统运行性能,为解决国内特高压直流工程中类似问题提供了参考。In island operation of Yunnan-Guangdong ±800 kV UHVDC transmission system, serious voltage fluctuation will be caused by switching reactive power compensation devices. In this paper, static var compensators （SVCs）were investigated to mitigate voltage fluctuation and improve the operation performances of UHVDC. Based on the RTDS and control ＆ protection equipments designed by Nail-Relays Electric Co., LTD., the simulation model of Yunnan-Guangdong ±800 kV UHVDC transmission system was developed. Then the effects of SVC on mitigating voltage fluctuation were simulated and analyzed. The simulation results show that SVCs can be used to improve the operation performances of UHVDC very well, and it is helpful to resolve the similar problems in UHVDC projects in China.

关 键 词：特高压直流输电 静止无功补偿器 实时数字仿真 电压波动 

分 类 号：TM743[电气工程—电力系统及自动化]