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.
出处
《电力自动化设备》
EI
CSCD
北大核心
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)~~
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
double-generator and infinite system
constant reactive power control strategy
leading-phase operation
voltage regulation
reactive power distribution
control
stability
