Power system coupled with internal combustion generator and energy storage battery and collaborative control method thereof

Abstract

This invention provides a power system coupled with an internal combustion generator and an energy storage battery, and its coordinated control method. The power system includes an internal combustion generator unit, an energy storage battery unit, and a coupling control unit, achieving complementary advantages between the internal combustion generator and the energy storage battery. It features a simple structure, low cost, and high overall energy conversion efficiency. The coordinated control method first identifies the current operating mode of the power system based on the required power P_load and the state of charge (SOC) of the energy storage battery. Based on this operating mode, it allocates power between the internal combustion generator and the energy storage battery. Then, it performs mode switching and adjusts the output power of the internal combustion generator and the energy storage battery to the allocated power. This method has the advantages of high efficiency, fast response, and smooth switching, and can be applied to microgrids, distributed energy resources, emergency power supplies, and other scenarios.

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