【摘要】 在新能源联合供电系统中,采用多输入直流变换器代替多个单输入直流变换器,可以简化电路结构,降低系统成本。本文提出了一种新颖的多输入全桥变换器,并且以双输入为例,通过分析双输入全桥变换器的工作原理及其特性,提出了多移相控制策略实现开关管的软开关,及一种实现两输入源功率分配的能量管理方法。最后通过一个800W的原理样机验证了理论分析的正确性和能量管理策略的有效性。更多还原

【Abstract】 In the renewable power system with two or more sources,the application of multiple-input converter(MIC) instead of several single-input converters can simplify the circuit and reduce the cost.A novel multiple-input full bridge converter is proposed in this paper.Taking the two inputs as the example,the operation modes and the characteristics of the double-input full bridge converter are presented.By applying the proposed multiple phase-shift control strategy,the soft-switching technology is accessible.Power management method of the new converter is also introduced.Finally,an 800W prototype is built to verify the theoretical analysis and the effectiveness of the control strategy.更多还原