MPPT控制Boost变换器的一种软开关实现策略  

A Soft Switching Strategy for MPPT Controlled Boost Converter

作　　者：王雪晴[1] 杜豪杰[1] 

机构地区：[1]平顶山学院电气信息工程学院,河南平顶山467000

出　　处：《电子器件》2013年第4期473-477,共5页Chinese Journal of Electron Devices

基　　金：河南省科技厅科技发展计划项目(112102220331)

摘　　要：提出了最大功率点跟踪MPPT(Maximum Power Point Tracking)控制Boost变换器的一种软开关实现策略:将MPPT控制Boost变换器设计在断续导通模式DCM(Discontinuous Conduction Mode)下。首先推导了MPPT控制Boost变换器的等效负载,然后借助工作模式分析推导得到输入电感的临界值。设计输入电感为临界值就可以使得变换器在全输入电压范围内工作在DCM模式下,开关器件实现自然的软开关。最后,在PSIM软件中完成了仿真验证。A soft switching strategy for Boost converter with maximum power point tracking（MPPT） was proposed, which was to design MPPT controlled Boost converter in discontinuous conduction mode. Firstly, the equivalent load of MPPT controlled Boost converter was deduced, then the critical value of input inductor was obtained based on working mode analysis and discussion. The converter kept in DCM mode under whole input voltage range when the input inductance was its critical value, and the switching device could realize soft switching. Finally, simulation veri- fication was done in PSIM software.

关 键 词：BOOST变换器 软开关 断续导通模式 临界电感 

分 类 号：TM46[电气工程—电器]