Multi-module Input Series Output Parallel DC/DC Converter Study of Control Strategis

Multi module input series output parallel (ISOP) DC/DC converters can be used in various applications. In order to ensure the normal operation of the entire system, it is necessary to equalize the input voltage and current between various modules. In this paper, a local information-based input voltage droop equalization control strategy is proposed for ISOP-based DC/DC converter systems. This control strategy has a fast dynamic response, achieves modular operation, high redundancy and improves the reliability of the system. A stability analysis was then performed on the control strategy and its effectiveness and feasibility were verified through simulation and experiment.