一种新的双输入多通道直流变换器

在传统的含储能单元分布式供电系统中，一般都需要多个单向直流变换器和双向直流变换器才能实现其功能。提出一种新的双输入多通道直流变换器，它的功能等效于一个单向直流变换器和一个双向直流变换器。分析了双输入多通道直流变换器的工作原理，给出了变换器的稳态关系式以及能量管理方法，并运用Saber软件进行仿真，验证了理论分析的正确性。该直流变换器除具有双输入Buck直流变换器的优点外，还能实现可再生能源向储电输入源充电。

A New Multi-channel DC/DC Converter with Two Inputs

Multiple unidirectional and bidirectional DC converters are usually needed in the traditional energy storage unit of the distributed generation system, to realize its function. The paper puts forward a new multi-channel DC converter with two inputs, whose function is equivalent to a DC converter plus a bidirectional DC converter. The working principle of the multi-channel DC converter with two inputs is analyzed, the steady state equation and the energy management method of converter are worked out. Sim- ulation experiment is conducted and the validity of the analysis is verified by using Saber software. It is concluded that the converter not only possesses the advantages of double input DC Buck converter, but makes it possible that renewable energy supply power to storage input source.