考虑时滞影响的汽轮发电机汽门开度的广域H_∞控制  

Wide-area H_∞Control of Steam-valving System of Steam Turbo Generator with Time-delay Considered

作　　者：蔡超豪[1] 

机构地区：[1]沈阳工程学院,辽宁沈阳110136

出　　处：《电力科学与工程》2009年第2期5-9,共5页Electric Power Science and Engineering

摘　　要：研究了汽轮发电机汽门开度的广域H∞控制,讨论利用线性矩阵不等式进行H∞控制器设计的方法及步骤,除考虑时滞影响外,还计及了外部扰动和建模误差等不确定因素。以联接到远方系统的汽轮发电机为例,进行了存在广域测量系统时滞影响的发电机汽门的H∞控制器设计。所设计的控制器具有很好的对时滞的不敏感性,并可以抑制外部干扰,保持电力系统的动态稳定。The paper researched the wide-area H∞ control of steam-valving system of steam turbo generator with time-delayconsidered, and discussed the method and step ofthe design of H∞ controller by LMI technique. Except the influence of time-delay considered, uncertain factor of external perturbations and modeling error were considered. For an example, the H∞ controller of steam-valving system of one generator connected to distant power system with time-delay was designed. The results of analysis and simulation demonstrated that the controUer can not only endure the time-delay, but also improve the dynamic stability of power system.

关 键 词：广域控制 时滞 发电机汽门 H∞控制 线性矩阵不等式处理方法 

分 类 号：TM712[电气工程—电力系统及自动化] TM761