锁相环频率跟踪技术在等离子电源中的应用研究  

Application of frequency tracing technology based on PLL in plasma power supply

作　　者：周兵[1] 赵龙章[1] 窦迅[1] 沈美杰 周崇明[1] 

机构地区：[1]南京工业大学电气工程与控制科学学院,江苏南京211816

出　　处：《现代电子技术》2016年第4期156-158,162,共4页Modern Electronics Technique

基　　金：国家自然科学基金项目(51277028);江苏省高校自然科学研究面上项目(12KJB470007)

摘　　要：近期PM2.5细颗粒雾霾造成了严峻的大气环境污染,引起了社会广泛的关注。针对此问题,研究一种新型高频高压等离子体电源去除雾霾装置,通过打断有害物质化学键的方式,从根本上起到净化空气的作用。对等离子电源负载端的稳定性进行研究,基于DSP的锁相环设计,实现对负载频率的有效跟踪,使电源工作于功率因数约为1的准谐振状态,从而大大提高系统的动态性能和稳定性能。The air environmental pollution caused by PM2.5 fine particle haze has aroused extensive attention of society. To solve this problem,a new haze removing device with high-frequency and high-voltage plasma power supply is studied,in which the air is fundamentally cleaned by means of interrupting the chemical bond of harmful substances. The stability at load-side of the plasma power supply is studied. The design of phase-locked loop（PLL）based on DSP can realize the effective tracking of load frequency,which makes the power supply work at quasi-resonant state,whose power factor is about 1. The dynamic performance and stable performance of the system can be greatly improved.

关 键 词：等离子体 高频高压电源 频率跟踪控制 锁相环路 

分 类 号：TN911-34[电子电信—通信与信息系统]