一种新型逆变器及其滑模控制

A novel inverter and its sliding mode control

提出一种新型逆变器,该逆变器具有拓扑结构简单和控制设计容易的优点,整个拓扑只有一个高频开关,故开关损耗小,且输出电压的幅值可以大于也可以小于输入电压。为了使新拓扑获得很好的动态和稳态性能,在分析其基本工作原理的基础上,对该拓扑的滑模控制进行了研究。最后进行了仿真验证。仿真结果表明,在滑模控制下,新型逆变器对负载扰动具有很好的抑制能力,表现出很好的动态和稳态性能,且输出电压波形谐波含量低,波形质量好,是一种高性能的逆变器。

A novel Boost invert is proposed. The topological structure of the Boost invert is simple and the control design is easy. There＇s only one high frequency switch which make the switch low loss in the topology. The output voltage amplitude of the topology can be more or less than the input voltage. To realize good dynamic and static performance, the sliding mode control of the Boost invert was researched based on the working principle of the invert. Simulation results show that the Boost invert adopting sliding mode control has good dynamic and static performance, which has very good inhibitory ability for input disturbances and load disturbance. The output voltage is high quality and the harmonic content is low. It is a hizh-oerformance inverter.