摘要
为了研究介质阻挡放电(DBD)高压逆变电源中,串联谐振电路的谐振电流和逆变器的开关频率之间的关系,谐波分析了由高频高压变压器和DBD负载组成的分布参数电路,在基于数字信号处理芯片(DSP)的高压逆变电源上,研究了谐振频率跟踪的数字化实现方法。研究结果表明,当谐振频率为开关频率的1、3和5等奇数倍时,谐振电流(有效值)曲线上出现了幅值逐渐减小的不同的极大值点;通过跟踪不同的谐振电流的极大值点,可以实现谐振频率的跟踪控制。
In order to study the relations of resonam current and switching frequency of series resonant converter of the DBD high voltage inverter power supply,the distributed parameter circuit model of high voltage inverter power supply,which consists of high frequency high voltage transformer and DBD load, are analyzed, and a numeric relations of Root Mcan Square（RMS）value of resonant current is current is studied; finally, the high voltage inverter power suptply is experinicntally studied based on the Digital Signal Processor （DSP）. The research results show that a gradually reduced local maximum value of resonant current appears on the curve of resonant current vs switching frequency ,when the switching frequency is equal to the one time,three times, or five times and etc of the resonant frequency. Therefore,when the initiated resonant frequcncy is chosep on the rising period of resonant current, the resonant frequency can be traced by tracing the local maximum value of resonant current.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2009年第1期163-168,共6页
High Voltage Engineering
基金
黄冈师范学院博士科研启动基金资助项目(07cd178)~~
关键词
谐振变换器
高频高压变压器
电流-频率特性
谐波分析
谐振电流极大值跟踪
谐振频率跟踪
resonant converter
high frequency and high vohage transformer
characteristic of resonant current vs switching frequency
harmonic analysisi resonant current local maximum value tracing
resonant frequency tracing
