电压型PWM逆变器的自抗扰控制策略  

The Application of Auto-Disturbance Rejection Controller for Voltage Source PWM Inverter

作　　者：邹祖冰[1] 蔡丽娟[1] 甘辉霞 

机构地区：[1]华南理工大学电力学院,广州510640 [2]葛州坝集团公司,宜昌443000

出　　处：《电工技术学报》2004年第2期84-88,共5页Transactions of China Electrotechnical Society

基　　金：广东省"十五"科技重大专项资助项目(A1050202)。

摘　　要：电压型PWM逆变器是一非线性、多变量、强耦合的系统,建立精确的数学模型极其困难。采用自抗扰控制器,用配置非线性结构替代极点配置进行控制系统的设计,依靠期望轨迹与实际轨迹的误差大小和方向来实施非线性反馈控制,对逆变器的数学模型要求并不高。仿真和实验结果表明,该控制策略能较好地实现电压型PWM逆变器的控制,具有较好的动态特性和较强的鲁棒性。Voltage source PWM-inverter is a nonlinear multivariable system with strong coupling. Its very difficult to present the inverters perfect model. The paper introduces the theory of Auto-disturbance rejection controller.The design use the allocation nonlinear construction instead of the pole-zero assignment. The nonlinear state error feedback control law depend on the error of expected and practice trace. Its without an explicit mathematical model of the plant. The simulation and experiment results confirm the control strategy realize the voltage source PWM-inverters control. It has preferably dynamic characteristics and robust quality.

关 键 词：电压型逆变器 自抗扰控制 UPS 

分 类 号：TM761[电气工程—电力系统及自动化]