单Buck型逆变器状态反馈线性化最优控制  

State variable feedback linearization optimum control of buck inverter

作　　者：陈江辉[1] 谢运祥[2] 王健敏[1] 

机构地区：[1]仲恺农业工程学院自动化学院,广东广州510225 [2]华南理工大学电力学院,广东广州510640

出　　处：《电机与控制学报》2014年第8期75-80,共6页Electric Machines and Control

基　　金：广东省自然科学基金(05006521)

摘　　要：为了研究单Buck型逆变器非线性系统的二次型最优控制方法,提出一种状态反馈精确线性化和二次型相结合的最优控制方法;建立以状态空间平均法的单Buck型逆变器系统动态模型,采用状态反馈精确线性化方法,并给出状态反馈表达式,实现逆变器系统线性化;依据无源性控制思想,给出二次型最优控制控制器的分析与设计和无源性能量函数对优化Q和R取值方法;仿真和实验结果验证了其控制方法的正确性,同时表明该线性化控制策略系统稳定,输出电压畸变小,具有良好稳态与动态性能和强鲁棒性;线性化使其控制系统结构简单,成本低,易于实现。In order to study optimum control method of quadratic form on single Buck inverter,the optimal control method of state feedback exact linearization was presented,the dynamic system model of single Buck inverter with state space averaging method was established,the state feedback expressions was given with the state feedback linearization control theory,and the inverter system linearization was realized; Basing on passive control theory,analysis and design of quadratic form optimal controller and passive energy function for the optimization of Q and R value were given; Simulation and experimental results verify the correctness of the control method,and show that the linearization control system stability,output voltage distortion is small,has good steady state and dynamic performance and strong robustness; Because of linearization of nonlinear system,the control system has simple structure,low cost,and it is easy to realize.

关 键 词：BUCK逆变器 最优控制 无源性控制 状态反馈线性化 李导数 

分 类 号：TM46[电气工程—电器]