摘要
在建立有源箝位变换器小信号模型的基础上,对PWM峰值电流控制进行了研究,得到了完整的峰值电流控制交流小信号数学模型。最后采用Orcad仿真软件对系统进行仿真,并通过实验论证了模型的可行性。
The advantages and drawbacks of three kinds of reset circuits for the active clamp forward converter are compared and analyzed.The effects of magnetizing current in the active clamp forward converter are analyzed and the small signal model of peak current controlled active clamp forward converter is accomplished through the small signal model of three basic converters.Finally,the simulative and experimental results are shown to explain the effects of active clamp circuit on the small signal properties of peak current controlled active clamp forward converters, and a way for improving the converters dynamic properties is proposed.
出处
《电力电子技术》
CSCD
北大核心
2009年第7期50-52,共3页
Power Electronics
关键词
变换器
励磁电流
仿真
箝位电路
小信号模型
converter
magnetizing current
simulation / clamp circuit
small signal model
