适用于并联型有源电力滤波器的新型模糊控制  

Novel Fuzzy Control Applied to Shunt Active Power Filter

作　　者：颜文旭[1] 纪志成[1] 谢林柏 

机构地区：[1]江南大学通信与控制工程学院,无锡214122

出　　处：《电力系统及其自动化学报》2010年第2期113-118,共6页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(60804013)

摘　　要：针对并联型有源电力滤波器的非线性控制问题,基于T-S模糊控制的方法,在统一功率因数的前提下,对单相并联型有源电力滤波器进行数学模型分析,并建立T-S模糊控制模型,在此基础上设计仅用四条模糊规则的模糊控制器。采用并行分布补偿的方法设计T-S模糊状态反馈控制器,通过稳定性的分析并将求解问题转化为线性优化问题,通过求解线性矩阵不等式,获得统一功率因数及谐波补偿的控制器状态反馈增益。仿真结果验证了所建模型及所设计控制器的正确性和有效性。Aim at nonlinear control of shunt active power filter, the traditional PI controller is inefficient. Takagi-Sugeno （T-S） type fuzzy logic method was used in order to deal with the nonlinearity at the presupposition of unit power factor in this paper. By the mathematics model analysis of the single-phase shunt active power filter, T-S fuzzy logic model was established and fuzzy controller was designed with just four rules. With analysis of the stability of the proposed T-S model, parallel distributed compensation was employed to design fuzzy controllers for the T S fuzzy model. A common Lyapunov function was found and the stable feedback gains was solved by linear matrix inequality via Matlab. Computer simulations of a single-phase power system indi- cate the correctness and validity of the proposed model.

关 键 词：Takagi—Sugeno模糊模型 有源电力滤波 线性矩阵不等式 并行分布补偿 功率因数 谐波 

分 类 号：TM743[电气工程—电力系统及自动化] TP273.4[自动化与计算机技术—检测技术与自动化装置]