基于T型滤波器的风力发电并网分散鲁棒控制方法  

Decentralized Robust Control Strategy of Grid-connected Wind Generator Based on T-filter

作　　者：杜福银[1] 徐扬[2] 

机构地区：[1]西南交通大学电气工程学院 [2]西南交通大学智能控制开发中心

出　　处：《现代电力》2010年第5期57-61,共5页Modern Electric Power

基　　金：国家自然科学基金项目(60875034)

摘　　要：在现有T型滤波器的三相并网矩阵变换器系统模型基础上,根据电路分析有关定律,建立了T型滤波器的三相并网非线性耦合的不确定关联大系统模型,并通过变换将现有模型中非线性耦合转换为线性耦合,构建了适合于应用现有分散鲁棒控制方法的三相并网T型滤波器的不确定关联大系统模型,在分析了其稳定性基础之上,给出了该不确定关联大系统的分散鲁棒控制器的设计方法。并将该控制律设计方法应用到一个500kW风电并网T型滤波器的实例中,仿真结果表明该方法有效可行。Based on three-phase grid-connected matrix transformation model of T-filter,T-filter based uncertain interconnected large-scale system model which is three-phase grid-connected nonlinear coupled is built according to circuit analysis laws.Through matrix transformation,the nonlinear coupled model can be transformed into linear coupled system,then three-phase grid-connected nonlinear coupled large-scale interconnected system model based on T-filter that can be analyzed by using of decentralized robust control strategy.Based on stability analysis,the design method of decentralized robust controller of uncertain large-scale interconnected system is given.In addition,the design method of control law is applied to T-filter case of a 500kW grid-connected wind generator,and the simulation results show the feasibility and validity of this method.

关 键 词：不确定关联系统 分散鲁棒控制 模型 并网 T型滤波器 

分 类 号：TM614[电气工程—电力系统及自动化]