感应电机的非线性干扰抑制控制

摘要

Based on the design of similar skew-symmetric structure,a L2-gain controller was presented for interference rejection.Aimed at the uncertainty of motor load torque in the process of controller design,some adjustable parameters corresponding to the uncertainty were introduced.Taking similar skewsymmetric structure as the desired closed-loop structure,a controller for motor speed and magneto-chain tracking was designed with inverse-inference method.The L2-gain algorithm was adopted to perform dissipation analysis,allowing the system to be not only robust in connection with the uncertain terms,but also restrains external disturbance,so that the static and dynamic performance of closed-loop system would be guaranteed.Simulation result demonstrated that proposed controller was valid.%提出一个基于相似反对称结构设计的L2增益干扰抑制控制器.针对感应电机负载转矩的不确定性,在设计控制器时引入与不确定性参数相应的可调参数.以相似反对称结构为闭环期望结构,采用逆推法设计电机转速和转子磁链跟踪控制器.并通过L2增益算法进行耗散性分析,使系统不仅对不确定项具有鲁棒性,而且对外部干扰具有抑制作用,保证闭环系统的动静态品质.仿真结果表明了所提出控制器的有效性.