摘要
针对传统变换器升压能力有限、器件应力过高的问题,通过控制开关管以改变储能元件的充放电状态,在boost电路的基础上构造出一条新的充放电支路,进而推导出一种新型高增益的DC-DC变换器,并在理论分析的基础上搭建仿真电路,验证了可行性。与传统变换器相比,该变换器大大提高了增益比,降低了器件应力和电流纹波;2个开关管同时通断,简化了控制策略;采用非隔离结构,提高了系统效率,适用于高升压且不需要隔离的直流变换场合。
In view of the booster ability of traditional converter being limited and the problem of device high stress,by controlling the switch so as to change the state of charge and discharge of energy storage component,on the basis of the boost circuit,a new charge and discharge branch is constructed.Then it deduces a new type of high gain DC-DC converter,and sets up the simulation circuit on the basis of theoretical analysis.It proves the feasibility.Compared with the traditional converter,the converter greatly improves the gain ratio,reduces the device stress and current ripple.Two switches get on and off at the same time,simplifying the control strategy.The non-isolation structure is adopted to improve the efficiency of the system,and it is suitable for high voltage boost and non-isolation DC converter.
作者
赵金波
ZHAO Jinbo(College of Electrical Engineering&New Energy,China Three Gorges University,Yichang,Hubei 443002,China)
出处
《东北电力技术》
2023年第6期20-24,共5页
Northeast Electric Power Technology
