Hydrogen energy fuel cell direct-current microgrid system and control method

Abstract

The invention relates to the technical field of micro-grids. The invention particularly relates to a hydrogen energy fuel cell direct-current microgrid system and a control method. The system comprises a power grid, a middle-high voltage direct current line, a first direct current branch connected with the middle-high voltage direct current line, a low-voltage direct current module connected withthe first direct current branch, a distributed power generation system connected with the first direct current branch, wherein the distributed power generation system comprises a hydrogen energy fuelcell power generation module and an energy storage module, and an energy information control system. According to the invention, the energy information control system is arranged, all the components are in communication connection with the energy information control system, and the energy information control system collects operation data of each component through the energy data module. Accordingto the acquired operation data, an algorithm is used to calculate the supply and demand power balance of the whole system, and two high-voltage DC buses are arranged so that the anti-interference capability of the microgrid system can be enhanced, and the power supply system is enabled not to crash when power failure or voltage flicker or voltage drop occurs.

Description

technical field [0001] The invention relates to the technical field of microgrids, in particular to a hydrogen fuel cell DC microgrid system and a control method. Background technique [0002] Micro-grid (Micro-Grid), also translated as micro-grid, refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. For a long time, the research and development of DC microgrid related technologies has been widely concerned by all walks of life. Communication companies in countries such as Sweden, Japan, France and the United States have started the research and introduction of 300-400V DC power distribution in data centers in the 1990s. In addition, the DC regional power distribution of warships, aviation and automation systems, especially the electric traction DC power supply technology has matured, which provides a good opportunity for the promoti...

AI Technical Summary

Problems solved by technology

The occurrence of voltage flicker and voltage drop will not only bring disadvantages to the normal operation of electronic equipment, but also likely to cause malfunction of the control system, which will eventually lead to the collapse of the entire DC microgrid system

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