摘要
对全桥型逆变器的滑模控制方案进行了分析,包括建立系统的变结构模型、选择滑模切换线和确定控制作用,给出可到达条件及滑模存在区域等。着重讨论了在实际电路设计中选择开关面系数和开关频率的原则,并且给出相应的设计程序。在此基础上进行了仿真研究并设计制作了实验样机,仿真及实验结果表明滑模控制全桥型逆变器的输出电压能够快速跟踪参考信号,在负载突变的情况下,输出电压表现出对扰动的不敏感性和较强的鲁棒性以及良好的动态特性。
A sliding mode control scheme for the full bridge buck inverter was analyzed, including modeling the variable structure system, selecting the switching line and control law, and deriving reaching conditions and sliding domain. The criterions of selecting switching surface coefficients and switching frequency for the practical implementation were considered and the corresponding design procedure was presented. Simulations were carried out and an experimental prototype had been built up. The simulations and experimental results show that the output voltage of the sliding mode control inverter tracks the reference sinusoidal signal fast, and exhibits good dynamic property and robustness under load perturbations.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第3期59-63,共5页
Proceedings of the CSEE
基金
国家自然科学基金项目(60372004)
广东省自然科学基金项目(20820)~~
关键词
电力电子
滑模控制
逆变器
鲁棒性
变结构
Power electronics
Sliding mode
Inverter
Robustness
Variable structure
