多馈入直流受端电网动态无功补偿选址研究  

Study on the Site Selection for Dynamic VAR Compensation of Receiving-end Grid with Multi-infeed HVDC Transmission Systems

作　　者：刘育权[1,2] 杜兆斌[1] 陈海涛[1] 张尧[1] 钟庆[1] 李欣 

机构地区：[1]华南理工大学电力学院,广州510640 [2]广州供电局,广州510620

出　　处：《南方电网技术》2013年第5期32-36,共5页Southern Power System Technology

基　　金：国家自然科学基金重点基金项目(50337010);中央高校基本科研业务费专项资金(2013ZM0028)~~

摘　　要：随着大容量直流输电的广泛应用,若动态无功功率储备不足,当发生直流闭锁等严重故障时,系统面临暂态电压失稳风险。提出综合电压涨幅指标法研究多馈入直流受端电网的动态无功补偿选址问题。通过系统电压弱区域分析和时域仿真,结合静止无功补偿器(SVC)的响应指标和容量等参数确定SVC的最优安装地点。对大规模交直流混联系统仿真结果验证了所提方法的有效性和工程实用性。With wide usage of large capacity HVDC transmissions, AC/DC hybrid power system faces the problem of transient volt- age stability after DC lines block without adequate dynamic reactive reserves. This paper proposes a composite voltage makeup-based method to search the optimal locations of Static VAR Compensator （SVC） for the receiving-end power grid of malti-infeed HVDC transmission system, which combines weak region analysis and time domain simulation for fault response performance with SVC. The computing results of a large-scale practical system validate the effectiveness and engineering value of the proposed method.

关 键 词：多馈入直流 受端电网 暂态电压稳定 动态无功补偿 

分 类 号：TM721.1[电气工程—电力系统及自动化]