LCC谐振变换器的优化设计与实现

Optimization Design and Realization Based on Genetic Algorithm for Electrostatic Precipitator High-Frequency High-Voltage Power Supply LCC Resonan Converterfor

LCC谐振变换器是电除尘高频高压电源的核心器件,十分适用于高压大功率场合;因此研究一种方法使LCC谐振变换器的设计更加方便准确,更好的增强电源性能,提高电源工作效率非常重要的;针对连续模式应用于电除尘高频高压电源的不足,采用LCC谐振变换器断续模式进行优化设计;首先分析了带RC负载的LCC谐振变换器断续模式(简称DCM)的工作原理及拓扑结构,采用状态空间法推导了其数学模型,研究并建立了新颖的LCC谐振变换器断续模式下的损耗模型;在此基础上提出了一种基于遗传粒子群算法的LCC谐振变换器优化设计方法;这种优化设计方法使得系统实现了软开关技术,电源损耗得到了有效抑制,设计过程直观、准确;并在现场通过一台72KV/85KW的电除尘高频高压电源样机验证了其正确性。

LCC resonant converter is the core device of the Electrostatic Precipitator High-frequency high-voltage power supply , very suitably for high pressure high-power situation. So to make the LCC resonant converter design more convenient and accurate, better to en- hance the power performance, to enhance the working efficiency of the power supply is very important. In view of insufficient of the continu- ous model applied to the Electrostatic Precipitator high frequency high voltage power supply, this paper adopts intermittent mode of the LCC resonant converter to optimize design. This paper analyze the working principle and topology of LCC resonant converter intermittent mode with RC load, and its mathematical model is deduced, using the state space approach to study and the establishment of a novel LCC resonant converter loss model of intermittent mode. Based on this advances a kind of LCC resonant converter optimization design method based on Ge- netic Particle Swarm optimization algorithm. The optimization design method makes the system has realized the soft switch technology, the power loss has been effectively suppressed, and design process is intuitive arid accurate . The scene verifies the accuracy of this article through a 72 kV/85 kW Electrostatic Precipitator High-frequency high-voltage power supply model machine.