基于恒无功控制策略的双机进相运行研究  

Double-generator leading-phase operation based on constant reactive power control strategy

作　　者：胡文旺[1] 卫志农[1] 王成亮[2] 吴昊[1] 陈鹏 

机构地区：[1]河海大学可再生能源发电技术教育部工程研究中心,江苏南京211100 [2]江苏方天电力技术有限公司,江苏南京211102 [3]徐州供电公司,江苏徐州i221000

出　　处：《电力自动化设备》2012年第10期127-131,共5页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(50877024,50977021);江苏省电力公司重点科技项目(J2009032)~~

摘　　要：提出一种恒无功控制策略,基于该策略设计了恒无功控制器;分析了机组有功出力对进相的影响和无功分配对静态稳定性的影响。仿真结果表明恒无功控制策略和恒无功控制器是有效和正确的;随着机组有功出力的增大,最大进相深度减小,调压能力减小;有功出力平均分配有利于提高最大进相深度;在总体进相深度确定的条件下,按无功与机组有功出力成反比的分配方案有利于提高电力系统整体静态稳定裕度。A constant reactive power control strategy is proposed and a constant reactive power controller is designed.The influence of active power output on leading-phase operation and the influence of reactive power distribution on static stability are analyzed.Simulative results show that,the proposed control strategy and the designed controller are effective and correct;the maximum leading-phase depth and the voltage regulation ability decrease with the increase of generator active power output;the even distribution of active power output may increase the maximum leading-phase depth;the distribution of reactive power inversely proportional to active power output may improve the overall static stability margin of power system when the overall leading-phase depth keeps constant.

关 键 词：双机无穷大系统 恒无功控制策略 进相运行 调压 无功分配 控制 稳定性 

分 类 号：TM72[电气工程—电力系统及自动化]