基于PCH的DFIM非线性L2增益控制新方法  

Novel nonlinear L2 gain control method for doubly-fed induction motor based on port controlled Hamiltonian model

作　　者：杨倩倩[1] 原明亭[1,2] 于海生[1] 丁军航[1] 

机构地区：[1]青岛大学自动化工程学院,山东青岛266071 [2]山东大学控制科学与工程学院,山东济南250061

出　　处：《中南大学学报（自然科学版）》2009年第S1期221-228,共8页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(60774027)

摘　　要：采用端口受控哈密顿(port-controlled Hamiltonian,PCH)与L2增益控制方法,建立双馈感应电动机(doubly-fed induction motor,DFIM)的PCH系统模型。采用PCH系统与L2增益扰动抑制技术,给出期望的闭环系统PCH结构,选取期望的闭环哈密顿函数。针对负载转矩扰动的情况,设计系统的L2增益控制律,分析平衡点的稳定性,利用SVPWM信号变换方法控制功率变换器各开关器件的切换点,实现了SVPWM的速度调节。仿真结果表明,系统实现了双馈感应电动机在受外界干扰情况下的转子转速有效跟踪期望转速,提高了系统的鲁棒性。Applying a novel nonlinear L2 gain control method for a doubly-fed induction motor (DFIM) based on port-controlled Hamiltonian (PCH) systems, A PCH model of DFIM was established. The desired closed-loop Hamiltonian function was given. Against the load torque disturbance, L2 gain control law was designed in terms of PCH system and the L2 gain disturbances attenuation. The equilibrium stability of the system was also verified. Using SVPWM signal transformation method, speed regulation of non-salient pole SVPWM was implemented by controlling the switch point of every converter switch. The control of speed and electromagnetic-torque are tracking asymptotically when interferences exist in the surrounding environment. The simulation results show that the proposed scheme has a good performance.

关 键 词：双馈感应电动机 PCH模型 L2增益控制 SVPWM 

分 类 号：TM346[电气工程—电机]