机构地区: 佛山科学技术学院机电与信息工程学院电气工程及自动化系
出 处: 《电气自动化》 2006年第3期8-9,15,共3页
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: 开关变换器 时不变滑模控制 单周期控制 趋近律
领 域: [电气工程] [自动化与计算机技术] [自动化与计算机技术]