CAJ | 학술논문

为了减小双向全桥DC-DC变换器的功率环流,分析传统移相控制中存在的功率回流现象,并分析回流功率对提高功率环流和电流应力所起的作用。在此基础上,提出一种双重移相控制方法。相比传统移相控制,该方法不仅具有更小的功率环流和电流应力,同时扩大了传输功率的调节范围,增强了功率调节的灵活性。详细介绍和分析双重移相控制的工作原理,给出变换器的工作模态分析,建立传输功率及回流功率的数学模型,并对比双重移相控制和传统移相控制的控制性能。最后,通过实验结果验证了双重移相控制的优越性。
위료감소쌍향전교DC-DC변환기적공솔배류,분석전통이상공제중존재적공솔회류현상,병분석회류공솔대제고공솔배류화전류응력소기적작용。재차기출상,제출일충쌍중이상공제방법。상비전통이상공제,해방법불부구유경소적공솔배류화전류응력,동시확대료전수공솔적조절범위,증강료공솔조절적령활성。상세개소화분석쌍중이상공제적공작원리,급출변환기적공작모태분석,건립전수공솔급회류공솔적수학모형,병대비쌍중이상공제화전통이상공제적공제성능。최후,통과실험결과험증료쌍중이상공제적우월성。
In order to reduce the power circulating flow in bi-directional full-bridge DC-DC converters,this paper analyzed the backflow power characteristic of converter.On this basis,the paper presented a dual-phase-shifting control method.The operation principle of the dual-phase-shifting control and the operation stages of the converter were analyzed in the paper.By establishing mathematical models of transmission power and backflow power,the paper comparatively analyzed control performances of the traditional phase-shifting control and the dual-phase-shifting control.At last,experimental results verify the excellent performance of the dual-phase-shifting control.