串联谐振逆变器最佳死区频率跟随系统  

Frequency Following System of a Serial Resonant Inverter with Optimal Dead Dime

作　　者：李敏远[1] 张素荣[1] 

机构地区：[1]西安理工大学,陕西西安710048

出　　处：《电力电子技术》2004年第3期45-47,共3页Power Electronics

摘　　要：研究了以功率MOSFET为开关管的串联谐振逆变器的频率跟踪问题。针对逆变器运行性能与死区宽度存在紧密联系的特点,提出了根据负载运行的频率和功率实时调整驱动信号死区大小的方法,实现了基于数字信号处理(DSP)的最佳死区频率跟随系统,给出了硬件和软件实现方案。实验结果表明,提出的方法是可行的。The paper analyzes the phase-lock technique of serial resonant inverter with power MOSFET as switching device. The paper aims at the inverter operating characteristic which is closely related to the breadth of the dead time and introduces a method for adjusting the dead time of the driving pulse according to the operating frequency and the power at real-time. A frequency self-following system with optimal dead time based on DSP was realized, the hardware and software realization scheme are given. The experimental results verify the method is efficient.

关 键 词：逆变器 锁相环控制 死区/数字信号处理器 串联谐振 

分 类 号：TM924.5[电气工程—电力电子与电力传动]