DC/DC变换器时不变滑模控制与单周期控制性能比较研究  

Research on the Performance Comparison between Time-invariant Sliding Mode Control and Single Period Control in DC/DC Converter

作　　者：杨兆华[1] 吴磊涛[2] 

机构地区：[1]佛山科学技术学院电气与自动化系,广东佛山528000 [2]华南理工大学自动化科学与工程学院,广东广州510640

出　　处：《电气自动化》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)

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.

关 键 词：DC/DC开关变换器 时不变滑模控制 单周期控制 趋近律 

分 类 号：TM46[电气工程—电器] TP17[自动化与计算机技术—控制理论与控制工程]