ZVT-PWM交错并联Boost PFC变换器的研究  

Research of ZVT-PWM Interleaved Boost PFC Converter

作　　者：刘松斌[1] 张忠伟[2] 姜学瑞 孙利军[1] 

机构地区：[1]东北石油大学电气信息工程学院 [2]大庆油田有限责任公司第一采油厂电力维修大队,黑龙江大庆163318

出　　处：《电气传动》2013年第S1期108-113,共6页Electric Drive

摘　　要：为了提高变换器的效率和性能,提出了一种新型的零电压转换交错型Boost PFC变换器。这种PFC变换器是采用两个交错并联的Boost变换器结构,这种变换器能够有效的抑制电磁干扰。变换器电路中谐振网络的谐振作用,可以使变换器的主开关、辅开关管以及二极管等元件工作在软开关的工作模式。这样就减少了开关管以及二极管的损耗,提高变换器的效率。而且不增加开关管的电压和电流应力。对零电压转换交错并联型Boost变换器的工作原理进行阐述。对工作的各个模态进行了分析,最后利用PSpice仿真软件进行仿真分析,得到主、辅开关的电压、电流波形。结果表明,该变换器可以实现开关器件的软开关工作,提高了变换器的效率。In this paper,in order to improve efficiency of the Boost PFC converter,a new type zero-voltage-transition interleaved Boost PFC converter is proposed. In this converter,Two Boost-topology switching cells are interleaved to minimize EMI,while operating at lower switching frequency. With the resonant unit of this converter,the main switch,auxiliary switch and diodes are able to operate with soft-switching,realized via auxiliary resonant network with low voltage and current stress,which reduced switching losses.The principle of the zero-voltage-transition interleaved Boost converter is analyzed. The voltage and current waveform of main switch and auxiliary are achieved by simulation with PSpice.The results confirm the validity of this converter.

关 键 词：交错并联 软开关 开关损耗 效率 

分 类 号：TM46[电气工程—电器]