频谱分散抑制气体放电中声谐振技术研究  

Study of Spread Spectrum in Suppressing Acoustic Resonance

作　　者：程为彬[1] 钟彦儒[1] 金舜[1] 

机构地区：[1]西安理工大学自动化与信息工程学院

出　　处：《电工技术学报》2006年第6期83-88,共6页Transactions of China Electrotechnical Society

摘　　要：对高强度气体放电灯的声谐振现象的机理进行数学分析,同时实验证明,产生声谐振需要同时具有恰当的频率和足够的能量。在脉冲宽度调制基础上,提出多种方法,降低激励能量,并对输出频谱作了数学分析,介绍了抑制的基本原理。在高压钠灯和金属卤素灯的电子镇流中应用表明,频谱分散技术对抑制气体放电中声谐振现象十分有效。The mechanism of acoustic resonance phenomenon in high intensity discharge lamps is analyzed mathematically, and it is also proved by experiments that the excitation of acoustic resonances should have appropriate frequency and enough energy at the same time. Based on the pulse width modulation, a number of approaches to reduce the exciting energy are proposed, and the output spectra are analyzed , and the basis principle of suppressing acoustic resonance is introduced too. The application in high pressure sodium lamps and metal halide lamps shows that the technique of spread spectrum is very effective on suppression of acoustic resonances.

关 键 词：气体放电灯 镇流器 等离子体 声谐振 频谱分析 

分 类 号：TM923.6[电气工程—电力电子与电力传动]