高功率密度的隔离型DC/DC变换器研究  

Research on isolated DC/DC converter with high power density

作　　者：郭天鸿 赵彦涛 周斌[3] GUO Tianhong;ZHAO Yantao;ZHOU Bin(State Grid Hebei Electric Power Co.,Ltd.xiong’an new area power supply company,Xiong’an,Hebei 071600,Chian;NARI-TECH Nanjing Control Systems Ltd.,Nanjing 211106,China;NARI Technology Co.,Ltd.,Nanjing 211106,China)

机构地区：[1]国网河北省电力有限公司雄安新区供电公司,河北雄安071600 [2]国电南瑞南京控制系统有限公司,南京211106 [3]国电南瑞科技股份有限公司,南京211106

出　　处：《自动化与仪器仪表》2022年第7期316-320,324,共6页Automation & Instrumentation

基　　金：国网河北省电力有限公司科技项目《户外高功率密度直流供电及安全保护技术服务》(B104XQ190106)。

摘　　要：针对现有DC/DC变换器输出电压稳态性较差的问题,基于DC/DC变换器拓扑结构,通过分析其模态并设置合理的参数,同时根据电压电流应力计算对主要器件选型,设计了一种高功率密度的隔离型变换器。结果表明,所设计的变换器可正常运行并输出稳定电压,满足设计需求,具有一定的应用价值。Aiming at the problem that the steady-state performance of the existing DC/DC converter needs to be improved,based on the topology results of DC/DC converter,an isolated DC/DC converter with high power density is designed by analyzing the DC/DC mode and reasonably setting the relevant parameters of the main circuit,and selecting the main devices according to the calculation of voltage and current stress.The results show that the hardware and software design of the designed DC/DC converter is reasonable,and can operate normally and output stable voltage.When working in the forward direction,the effect of zero voltage on of the switch and zero current off of the rectifier side diode is good;When working in reverse direction,the voltage can be boosted by changing the driving mode of rectifier,and the voltage gain meets the design requirements,which has a certain practical application value.

关 键 词：DC/DC变换器 高功率密度 隔离型变换器 开关电源 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]