摘要
本文在分析 DC/DC 开关变换器滑模控制方法的基础上,针对以往开关变换器滑模控制器抖振现象严重的缺点,通过引入趋近律的方法,以 Buck 变换器为例,给出了一种适合 PWM 控制方式的时不变滑模控制器的设计方法。仿真结果表明,该控制方案可以减少系统超凋,动、静态特性较好,并能有效削弱滑模运动的抖振现象。
Considering the defects of ancient time-invariant method in shaking phenomena, taking Buck-type converter as example, a novel time-invariant sliding mode control techniques propitious to PWM control method, by quoting the approach law, is introduced in this paper. Simulation results show that time-invariant sliding mode controlled converter has characters with stability, robustness and good dynamic response at perturbation of supply and load.
出处
《电气自动化》
北大核心
2006年第3期8-9,15,共3页
Electrical Automation
基金
广东省科技工业攻关项目(2004B10201020)
