基于UPFC的双馈风电场动态稳定性改善仿真  

Improved dynamic stability performance of DFIG-based wind farm by UPFC

作　　者：肖本旺 王渝红[1] 李兴源[1] 欧林[2] 张超[1] 张彪[1] 

机构地区：[1]四川大学电气信息学院,成都610065 [2]重庆市电力公司电力科学研究院,重庆401123

出　　处：《电测与仪表》2015年第23期6-10,共5页Electrical Measurement & Instrumentation

基　　金：国家高技术研究发展计划(863计划)项目(2011AA05A119);国家电网公司科技项目(JXGS-20121123)

摘　　要：风速变化剧烈或发生短路故障的情况下可能会导致双馈风电场电压崩溃,从而停运甚至危及电网的安全运行。统一潮流控制器(UPFC)能够维持系统电压稳定,减少无功功率交换,提高系统的动态稳定性。在PSCAD/EMTDC中搭建了含双馈风电场和UPFC的仿真模型,通过仿真对系统故障时加入UPFC和未加入UPFC时有功、无功、电压等进行比较,验证了UPFC能够改善双馈风电场动态稳定性。Voltage of DFIG-based wind farm may collapse under the condition of irregular changing of wind speed or short circuit fault occurs, thus the wind farm will be out of work, and the safety operation of the grid will be under threaten if the situation is terrible. UPFC can maintain voltage stability, decrease the reactive power exchange and im- prove the dynamic stability performance of the system. In this paper, simulation models of UPFC and DFIG-based wind farm are constructed on PSCAD/EMTDC. The comparison of active power, reactive power and voltage of wind farm with and without UPFC verifies that UPFC can improve dynamic stability performance of DFIG-based wind farm and make wind farm operate continuously.

关 键 词：UPFC 双馈风电场 动态稳定性 PSCAD/EMTDC 

分 类 号：TM933[电气工程—电力电子与电力传动]