PWM型有源箝位谐振直流环节逆变器*

作者：张双文,张德华 日期：2008-04-17/span> 浏览：3818 查看PDF文档

PWM型有源箝位谐振直流环节逆变器*
张双文,张德华
（浙江大学 电气工程学院,浙江 杭州 310027）〖HT〗

摘 要：通过深入分析双幅控制的工作原理，提出了一种适合于有源箝位谐振直流环节逆变器的PWM控制方案。同时采用TMS320F2812型DSP控制器对该方案进行了验证，给出了DSP控制的软件设计流程图。实验结果表明，该PWM控制方案不仅有效地提高了有源箝位谐振直流环节逆变器件的控制精度，而且输出波形稳态精度高，畸变小。
关键词：脉宽调制；双幅控制；逆变器；软开关

An actively clamped resonant DClink inverter of PWM type
ZHANG Shuangwen, ZHANG Dehua
(College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)
Abstract: A PWM control strategy which was suit for actively clamped resonant DCLink inverter was presented by analyzing the work principle of the two amplitude control seriously. Meanwhile, by the DSP controller with the type of TMS320F2812, the control strategy was verified, and the main flow chart was given. At last ,the result of the experiment shows that the PWM control strategy not only improves the precision of the actively clamped resonant DClink inverter effectively ,but also makes the output Voltage wave more steady.
Key words: pulse width modulation(PWM)； twoamplitude control； inverter； soft switch

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