基于Simulink的三相交错式DC/DC的设计及仿真

Research and Simulation of Three-Phase Interleaved DC/DC Based on Simulink

阐述了在两级式双向变流器中DC/DC的研究。介绍了多重化DC/DC的拓扑结构、电压电流双闭环控制策略,在频域内设计电流环与电压环的PI参数,并以100k W双向DC/DC为例进行了Matlab/Simulink仿真验证,系统稳定并具有较好的响应特性,适用于分布式电站双向变流器的拓扑结构、控制策略以及运行模式。

This paper introduces the research of DC/DC in the two level bidirectional converters.It also introduces the topology of multiplex DC/DC and the closed loop control strategy of voltage and current.The PI parameters of the current loop and the voltage loop are designed in frequency domain,and the 100kW bidirectional DC/DC is taken as an example to verify the Matlab/Simulink simulation.The system is stable and has good response characteristics,which has certain guiding significance for the topology structure,control strategy and operation mode of the bidirectional converter of the distributed power plant.