摘要
随着风力发电机组容量的不断扩大,在有串联补偿输电线路的系统中,异步风力发电机存在引发次同步谐振的风险。统一潮流控制器(UPFC)在增强风电场系统稳定性的同时还能增加系统中的次同步阻尼,抑制风力发电机的次同步谐振。通过在桨距角控制中加入附加控制并改进UPFC的控制策略,产生相应的次同步阻尼转矩,达到抑制次同步谐振的目的。在IEEE第一模型中加入风电场模型和UPFC模型,仿真结果验证了文中提出的控制方法的有效性。
With more and more wind-turbine generators being integrated into power system,asynchronous wind turbine generators may cause subsynchronous oscillations in the power system with series compensated transmission line. Unified power flow controller （UPFC） can maintain system stability and increase the subsynchronous damping to mitigate subsynchronous oscillations. In order to achieve required subsynchronous damping torque,the control strategy for UPFC is improved and additional control is introduced into the pitch angle control. A test system is constructed by embedding wind farm and UPFC model into IEEE first benchmark model. The results validate the proposed strategy.
出处
《电力系统自动化》
EI
CSCD
北大核心
2010年第8期101-105,共5页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目(50577044)
高等学校博士学科点专项科研基金资助项目(20070610109)~~
关键词
风力发电
统一潮流控制器
次同步谐振
PSCAD/EMTDC
wind-turbine generation
unified power flow controller （UPFC）
subsynchronous oscillations
PSCAD/EMTDC
