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摘要
This paper introduces a new kind of DC-DC converter used in the DC microgrid system. This converter embodies a high frequency DC transformer with Y-Δstructure. This transformer works at the phase shift mode, which can achieve higher voltage gain and is prone to magnetic integration. In the low voltage side we apply the current-triple rectifier circuit to achieve higher frequency and lower ripple of current, which can extend battery life. In the end, a 500 W prototype with DC input voltage of 12 V and output voltage of 380 V is built in the lab to verify the theory. When the converter works in the phase shifting control strategy, high voltage gain, high efficiency, and magnetic balance of the transformer can be realized.
- 出版日期2015
- 单位南京大学
