Buck变换器的全局最优滑模控制器设计  

Design of Global Optimal Sliding Mode Controller for Buck Converter

作　　者：何墉[1] 李春娟[1] 孙广东 

机构地区：[1]洛阳理工学院电气工程与自动化系,河南洛阳471023 [2]青岛软控股份有限公司,山东青岛266000

出　　处：《洛阳理工学院学报（自然科学版）》2010年第3期44-48,共5页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：河南省教育厅自然科学研究计划项目(2008B510016)

摘　　要：普通滑模变结构控制系统具有系统到达滑模面之前鲁棒性差的特点,若采用全局滑模控制则能克服这一缺点。针对Buck变换器输入电压纹波干扰问题设计了一种全局最优滑模面,消除了滑模控制的趋近阶段,能够保证系统从初始时刻到终止时刻对参数摄动和干扰具有鲁棒不变性,仿真结果验证了所用方法的有效性。According to the problem existing in the common sliding mode controller system that the performance of robust is not so excellent especially before approaching the sliding mode surface,a novel method of global optimal sliding mode has been designed for the buck converter to deal with disturbance of input voltage ripple.This method is able to eliminate the approaching phase of sliding mode control to ensure the robust remains constant in the control system from the initial point to the end point under the parameter perturbations and interference.The final simulation results prove the method effective.

关 键 词：全局最优滑模控制 BUCK变换器 鲁棒性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]