Environment-friendly multi-source micro-grid

By integrating photovoltaic, wind power, and fuel cell power generation, and combining the exhaust gas recycling of aluminum-air-hydrogen fuel cells, the problems of fuel depletion shutdown and exhaust gas pollution of microgrid generator sets have been solved, realizing stable power supply and low-cost operation of environmentally friendly multi-source microgrids.

CN223652011UActive Publication Date: 2025-12-09ZHENGZHOU FOGUANG ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Application Number
CN202423226556.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-09
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

In existing microgrids, generators shut down when they run out of fuel, and exhaust gas purification devices are expensive, making it impossible to achieve complete self-sufficiency and harmful to the environment.

Method used

The system integrates photovoltaic power generation, wind power generation, and fuel cell power generation, including aluminum-air fuel cells and hydrogen fuel cells, using a DC power supply system. It recycles exhaust gas through a gas-liquid separator and a water tank, and automatically controls the power supply sequence in conjunction with the main control power supply module to achieve multi-source power supply and environmentally friendly exhaust gas treatment.

Benefits of technology

It enables automatic power generation without human intervention for extended periods, reducing power generation costs and environmental pollution, and ensuring a stable power supply for the microgrid.

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Abstract

The utility model discloses an environment-friendly multi-source micro-grid, which comprises a direct-current power supply system, an alternating-current power supply system and a master control power supply module, the alternating-current power supply system adopts mains supply and diesel generator power supply, the mains supply and a generator set are integrated on an alternating-current bus and are switched by an ATS (automatic transfer switch), and alternating current is directly supplied to an alternating-current load for use; the direct current power supply system comprises a photovoltaic power generation unit, a wind power generation unit and a fuel cell unit; and the fuel cell unit comprises an aluminum-air fuel cell, a hydrogen fuel cell, a gas-liquid separator and a water tank. According to the utility model, solar power generation, wind power generation and fuel cell power generation are arranged on the basis of commercial power supply and diesel generator power supply equipment, and the fuel cell power generation adopts an aluminum air cell and a hydrogen fuel cell to simultaneously generate power, so that when the fuel cell power generation is used, the products of the aluminum air cell and the hydrogen fuel cell can be secondarily utilized; and the influence on the environment is reduced while the power generation cost is greatly reduced.
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