基于LMI理论的时滞电力系统无记忆状态反馈控制器设计  

Design of Memoryless State Feedback Controller for Time-delay Power System Based on LMI Theory

作　　者：安海云[1] 贾宏杰[1] 余晓丹[1] 

机构地区：[1]天津大学电力系统仿真控制教育部重点实验室,天津市300072

出　　处：《电力系统自动化》2010年第19期6-10,共5页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(50707019);国家重点基础研究发展计划(973计划)资助项目(2009CB219701;2010CB234600);天津市科技发展计划资助项目(09JCZDJC25000);"十一五"国家科技支撑计划重大项目(2006BAJ03A06);高等学校博士学科点专项科研基金资助项目(20090032110064)~~

摘　　要：设计电力系统广域控制器时,一个不容忽视的问题就是反馈信号的传输时延。文中应用基于自由权矩阵的线性矩阵不等式(LMI)理论给出了时滞系统的稳定控制判据,并根据电力系统的特点构造了无记忆状态反馈控制器。利用WSCC3机9节点系统验证了该控制器的有效性,并与已有方法进行了比较分析,结果表明所给出的方法具有更好的控制效果和较小的保守性。In designing a wide-area controller for a power system, a problem not to be neglected is the transmission time-delay. The free-weighting matrix method based on linear matrix inequality （LMI） is used to stabilize power systems with time-delay. And a memoryless state feed-back controller is then proposed. Systems such as the WSCC 3-generator 9-bus system is employed to validate the effectiveness of the method presented, which is compared with some existing approaches. It has been found that the method given is even more effective and less conservative in helping with wide-area controller designing.

关 键 词：广域测量系统 时滞 时滞依赖 状态反馈 线性矩阵不等式 

分 类 号：TM711[电气工程—电力系统及自动化]