基于多端口电能路由器的楼宇直流微电网研究与应用

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Abstract The growing maturity of power electronics and the wide application of distributed power, energy storage and 5G base station, electric vehicle charging pile, data center, DC household appliances and other DC loads on the user side promote the rapid development of low-voltage DC microgrid. This paper presents a typical topology of DC microgrid based on multi port power router, analyzes its multi port access functions such as photovoltaic, wind power, energy storage, AC power grid and AC/DC load, introduces the protection strategy and grounding mode of DC distribution system, and uses droop control method to coordinate and control photovoltaic, energy storage, AC power grid and load to achieve active power balance according to the change of DC bus voltage. Finally, the building low-voltage DC power distribution system is built to supply power for LED lighting, fan, air conditioner, air purifier, industrial lighting, charging pile, data center and other DC loads in the building. The operation and test results show that the system can realize the plug and play access of source load storage, improve the utilization rate of clean energy, and maintain safe, efficient and reliable operation, with practical push wide application value.

Key words： DC microgrid multi port power router droop control coordination control building DC load

Received: 21 March 2022

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	Articles by authors
	ZHAO Xianhao
	XIE Hongfu
	LIU Fei
	GU Dongjie
	REN Shuai

Cite this article:

ZHAO Xianhao,XIE Hongfu,LIU Fei等. Research and application of building DC microgrid based on multi port power router[J]. Electrical Engineering, 2022, 23(8): 75-83.

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http://dqjs.cesmedia.cn/EN/Y2022/V23/I8/75

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