Simulation Research on Energy Storage Bidirectional DC-DC Converter in Ship Microgrids

Hanyu Wang

《International Core Journal of Engineering》 5卷10期 (2019/09) Pp. 117-122

https://doi.org/10.6919/ICJE.201909_5(10).0018

摘要

As an important part of energy conversion in marine energy storage systems, bidirectional DC-DC converters play a key role in the energy storage system and it is important for the safety and stability of the power grid. In this paper, a bidirectional DC-DC converter with three-phase interleaved topology is proposed, which effectively compensates for the shortcomings of the traditional single-phase DC-DC converter, such as excessive current, low conversion efficiency, etc. Based on the analysis of the topology, we combine a shifting current sharing control strategy. Finally, the simulation results of the model are built on the Matlab/SIMLINK platform. The simulation results show that the three-phase interleaved parallel converter can be used in the PV energy storage system to obtain a stable output voltage and current waveform, which greatly reduces the inductance current and current ripple, and to some extent ensure the operating efficiency and energy conversion efficiency of the converter.

關鍵字

Ship Microgrids ； DC-DC converter ； three-phase interleaving ； shifting current sharing

參考文獻

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