仿射线性结果T-S模糊建模及其应用  

T-S Fuzzy Modeling for Affine Linear Consequence and Its Application

作　　者：胡阳[1] 刘吉臻[1] 林忠伟[1] 

机构地区：[1]华北电力大学 新能源电力系统国家重点实验室,北京102206

出　　处：《华东电力》2013年第8期1616-1621,共6页East China Electric Power

基　　金：国家重点基础研究计划项目(2012CB215203);中央高校基本科研业务费专项基金项目(13XS14)~~

摘　　要：为了改善风能转换系统(WECS)非线性模型的线性化水平,本文以其为研究对象,围绕工况点且基于一阶泰勒展开提出了一种结果部分为仿射线性结构的Takagi-Sugeno(T-S)模糊建模方法;然后利用该方法处理WECS模型中的非线性,给出了具体的T-S模糊建模步骤并得到了高精度的WECS线性控制设计模型;最后,基于模糊逻辑工具箱对该T-S模糊模型进行了模型验证。仿真结果显示,该T-S模糊建模方法具有任意精度的非线性模型及动态特性逼近能力。In order to improve the linearization level of the nonlinear model for Wind Energy Conversion System （ WECS）, this paper proposes a Takagi-Sugeno （T-S） fuzzy modeling procedure around the operating points using the one-order Taylor expansion approach, which is oriented to the nonlinear function terms. Particularly, this type of T-S fuzzy model has affine linear consequent parts. Then, the T-S fuzzy model is used to deal with the nonlinearity of WECS model. The detailed T-S fuzzy modeling procedure is presented and the linear control design model of WECS with high approximation aeeuraey is obtained. Finally, the model validation is simulated using the Fuzzy Logic Tool- box. The simulation results show that the T-S fuzzy model has arbitrary approximation accuracy to the nonlinear model and its dynamics.

关 键 词：风能转换系统(WECS) 非线性模型 Takagi—Sugeno(T-S)模糊 函数逼近 线性化 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程] TP29[自动化与计算机技术—检测技术与自动化装置]