【作者】 刘吉臻； 胡阳； 林忠伟；

【Author】 LIU Ji-zhen,HU Yang,LIN Zhong-wei (North China Electric Power University,Beijing 102206)

【机构】 华北电力大学；

【摘要】 为了改进已有的风能转换系统(WECS)的控制技术,本文针对WECS非线性状态空间模型中的非线性项进行提取分析,提出了一种基于模型的T-S模糊建模方法,并对WECS的非线性进行了T-S模糊线性化处理,以此构建WECS非线性状态空间模型的等价Takagi-Sugeno(T-S)模糊模型。文中给出了上述T-S模糊建模的具体步骤,并进行了求解与仿真验证,对实验结果的分析表明了该T-S建模方法的有效性;同时,对输入空间划分不同时该T-S模糊模型的逼近能力的对比表明了该方法具有任意逼近能力。结论部分对未来的研究工作进行了展望。更多还原

【Abstract】 In order to improve the control technique of WECS compared with the existed ones,this paper extracts the nonlinear term of the nonlinear state space model of WECS,and then advances a model-based method to establish T-S fuzzy model.In the later section, the method called T-S fuzzy linearizatoin for the nonlinearity of WECS is carried out,which will be used to obtain the equivalent T-S fuzzy model of the nonlinear state space model of WECS.In the paper,the steps for establishing the T-S fuzzy model is given in detail and the solution and simulink of them has been taken.The analytical results shows the effectiveness of this method.Simutaneously,the comparision between two T-S fuzzy model with differeent input region is executed and suggests the universal approximating ability of this method.The research in the future is prospected in the conclusion.更多还原