三相电压型逆变器的反步滑模变结构控制策略  

Backstepping sliding mode variable structure controlstrategy of three-phase voltage inverter

作　　者：荔凡凡 董锋斌[1] LI Fan-fan;DONG Feng-bin(School of Electrical Engineering,Shaanxi University of Technology,Hanzhong 723000,China)

机构地区：[1]陕西理工大学电气工程学院,陕西汉中723000

出　　处：《陕西理工大学学报（自然科学版）》2021年第1期29-35,共7页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：陕西省教育厅重点实验室科研计划项目(18JS021);陕西理工大学校级科研项目(SLG1819)。

摘　　要：为了克服反步控制对参数变化敏感以及鲁棒性不佳的不足,将反步法和滑模变结构控制两种策略相结合,讨论了多输入多输出系统反步滑模控制设计思路。使用反步控制策略设置虚拟控制量和构造Lyapunov能量函数,根据Lyapunov函数建立滑模面,选取合适的滑模趋近律,推导出多输入多输出系统反步滑模控制律的数学模型。将其应用到三相电压型逆变器非线性系统中,得到了三相电压型逆变器的控制模型。通过MATLAB/SIMULINK仿真验证了该控制策略的合理性。In order to overcome the shortcomings of backstepping control that are sensitive to parameter changes and poor robustness,the two strategies of backstepping and sliding mode variable structure control are combined to discuss the idea of backstepping sliding mode control for multi-input and multi-output systems.Use the backstepping control strategy to set the virtual control variable and construct the Lyapunov energy function,establish the sliding mode surface according to the Lyapunov function,select the appropriate sliding mode approach law,and derive the mathematical model of the backstepping sliding mode control law of the multi-input multi-output system.It is applied to the nonlinear system of three-phase voltage inverter,and the control model of the three-phase voltage inverter is obtained.The rationality of this control strategy is verified by MATLAB/SIMULINK simulation.

关 键 词：三相电压型逆变器 反步滑模变结构 MATLAB 

分 类 号：TM464[电气工程—电器]