Research on Power Supply Strategy of DC Microgrid with Diesel Rectifier Generator and Hybrid Energy Storage System

Aiming at the shortcomings of power supply continuity and reliability of off-grid power systems such as remote areas, islands and offshore drilling platforms, this paper proposes a multi-energy complementary power supply strategy based on DC grid for parallel connection of diesel rectifier generator and hybrid energy storage system, so as to make the power distribution in the power supply system reasonable and DC bus voltage stable under different operating conditions. Build Matlab/Simulink simulation model to verify the power supply strategy. The results show that the proposed power supply strategy can realize three power supply modes, and the switching between modes is smooth, which effectively guarantees the continuity and reliability of the power supply of the diesel storage DC microgrid.