基于转矩面积的UPFC稳定控制器优化设计  

Optimization Design of UPFC Stabilizer Based on Torque Area

作　　者：黄方能[1] 黄成军[1] 陈陈[1] 钱勇[1] 江秀臣[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海市200240

出　　处：《电力系统自动化》2008年第7期25-29,共5页Automation of Electric Power Systems

摘　　要：通过推导统一潮流控制器(UPFC)稳定控制器的状态方程,分析了UPFC稳定控制器对同步发电机电磁转矩的影响。同步发电机的同步转矩分量和阻尼转矩分量是影响电力系统稳定性最直接的因素。考虑到利用UPFC稳定控制器提高系统阻尼转矩时有可能会恶化系统的同步转矩,文中利用转矩面积对UPFC稳定控制器进行了优化设计,较大的转矩面积可以确保同步发电机同时拥有足够的同步转矩和阻尼转矩。优化后的UPFC稳定控制器在提高系统阻尼转矩的同时,改善了系统的同步转矩,从而有效提高系统的稳定水平。最后给出一个算例进行验证,EMTDC的仿真结果证实了该方法的有效性。By analyzing the state equations of unified power flow controller （UPFC） stabilizer, the influence of UPFC stabilizer on electromagnetic torque of synchronous generator is presented. Synchronizing torque and damping torque of synchronous generators are two main factors in influencing the stability of power system. In view of the possibility of worsening system synchronizing torque while improving the system damping torque by UPFC stabilizer, the parameters of UPFC stabilizer are optimized by using maximum torque area. Larger torque area could maintain enough synchronizing torque and damping torque. The optimized UPFC stabilizer can improve the synchronizing torque as well as damping torque, and therefore, improve the stability significantly. The EMTDC simulation results for an example demonstrate the efficiency of the method proposed.

关 键 词：统一潮流控制器 稳定控制器 同步转矩 阻尼转矩 转矩面积 

分 类 号：TM571.6[电气工程—电器]