上海多馈入直流系统的无功控制策略  

Reactive Power Control Strategy for Shanghai Multi-Infeed DC System

作　　者：郭小江[1] 马世英[1] 卜广全[1] 汤涌[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2009年第7期30-35,共6页Power System Technology

摘　　要：以上海多馈入直流规划系统为对象,采用常规稳定分析方法对系统存在的电压稳定问题类型进行了区分。利用静止无功补偿器(static var compensator,SVC)和调相机(synchronous condenser,SC)动态无功补偿装置以及直流换流站内无功控制、直流无功调制等方法提高了该系统抵御上海受端交流系统故障和直流闭锁的能力,改善了该系统的阻尼特性,形成了一套较完整的多馈入直流系统无功控制方法。仿真计算结果验证了该控制策略的正确性和有效性。Conventional stability analysis method is used to distinguish the type of voltage stability problems existing in Shanghai multi-infeed DC system, which is employed as the research object. By means of the approaches such as static var compensator （SVC）, synchronous condenser （SC）, dynamic reactive power compensation equipments as well as reactive power control inside converter station and DC reactive power modulation, the ability of resisting serious faults occurred in receiving end AC system and DC bipolar block is enhanced, and system damping characteristics is improved, thus an integrated reactive power control method for multi-infeed DC system is formed. Simulation results validate the correctness and effectiveness of the control strategy.

关 键 词：多馈入直流系统 特高压直流 无功功率补偿 无功功率调制 

分 类 号：TM711[电气工程—电力系统及自动化]