基于WAMS的UPFC装置的附加控制器设计  

Coordinated Control of Multi-UPFC Based on WAMS

作　　者：刘青[1] 马朋[1] 邹家平 

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,河北保定071003 [2]广东国华粤电台山发电有限公司,广东台山529228

出　　处：《华北电力技术》2015年第2期13-18,共6页North China Electric Power

摘　　要：目前电网中的FACTS装置种类繁多,且受提取信息的限制,各装置多基于本地信息进行控制,从而设备间因缺乏协调配合必然会产生负交互影响。基于PMU装置测得的广域信息设计了UPFC的附加控制器,应用李雅普诺夫方法推导出附加控制器的主、辅控制策略,通过调节系统暂态能量函数的时间导数值和主发电机的转子速度,两者相互配合来增加抑制低频振荡的阻尼,从而提高含UPFC系统的暂态稳定性,并用PSCAD仿真验证了附加控制器的有效性。Many kinds of FACTS devices coexist in power grid currently, and the control systems are based on localinformation for the limiting of extracting information. So there will be a negative interaction between devices due tolack of coordination. This paper devises additional controller of UPFC based on wide area information. Main and aux-iliary control strategies are derived utilizing the Lyapunov method by adjusting time derivative value of transient ener-gy function and changing the main generator rotor speed. Both of them cooperate with each other to increase thedamping for suppressing low frequency oscillation. The UPFC,with additional controller, can improve transient stabil-ity of multi-machine system equipped with multiple UPFC devices,then the effectiveness is proved by PSCAD.

关 键 词：PMU UPFC 控制策略 李雅普诺夫 

分 类 号：TM76[电气工程—电力系统及自动化]