适用于光伏发电的新型交错并联Boost变换器  

Novel Interleaved Boost Converter for the Photovoltaic Power Generation System

作　　者：张洋[1] 乔双[1] 唐小峰[1] 周大力[1] 

机构地区：[1]东北师范大学,物理学院,吉林长春130024

出　　处：《电力电子技术》2015年第2期69-71,共3页Power Electronics

基　　金：国家自然科学基金(11275046);中央高校基本科研业务费专项资金(12QNJJ009)~~

摘　　要：针对两级光伏发电系统的前级Boost DC/DC变换器,提出一种新型交错并联Boost直流变换器。该新型变换器有两个输入端,即一个变换器可对应两块单体太阳能电池,具有大功率变换的功能。与传统DC/DC变换器相比,该变换器可节省一半的变换器单元,还具有输出输入变比高、开关器件电压应力低和输出电流纹波小的特点。详细分析了该变换器的工作原理,并给出稳态工作性能分析和相应实验波形。最后,通过一台96 W/380V原理样机验证了理论分析的正确性。A new kind of interleaved parallel Boost DC/DC converter is put forward for the two levels photovoltaic power generation system.It has two input ports that a Boost converter using dual input power corresponds to two solar batteries,and has the function of high power transformation.Compared with the traditional DC/DC converter,the proposed novel Boost converter has the advantages of high voltage conversion ratio and low output current ripple.The basic operating principle of the DC/DC Boost converter is illustrated using periodic steady-state circuit analysis for each mode equivalent circuit.Finally,the effectiveness of the proposed Boost converter built and tested as a 96 W/380 V output is verified and evaluated on the basis of theoretical circuit analysis.

关 键 词：变换器 交错并联 双电源输入 

分 类 号：TM46[电气工程—电器]