ABSTRACT
In order to meet the demand of stable and continuous household electricity consumption, the author proposes the modelling and simulation of photovoltaic fuel cell hybrid power generation system. The system is composed of photovoltaic power generation device, fuel cell/super capacitor, electrolytic cell, hydrogen storage device and power regulation unit. As photovoltaic power generation is affected by sunshine changes, the combination of fuel cells and super capacitors with photovoltaic devices can ensure the stability and reliability of power supply of hybrid power generation system. Taking sunshine intensity and household electricity consumption in a certain area as an example, the system is simulated in MATLAB/SIMULINK software. The results show that: At 08:30-17:00, the output power of the fuel cell is almost zero. This is because the electric energy output by the photovoltaic power generation system can basically meet the power demand of users during this period. At 00:00-6:00 and 18:30-24:00, the sunlight intensity is zero, and the power output of the photovoltaic power generation system is zero, at this time, the user's electricity is completely supplied by the fuel cell. The investment cost of 1 kW fuel cell is about 45258.4 yuan, and that of 1 kW ordinary battery is about 15200 yuan, the investment cost of fuel cell is still high. In conclusion, the hybrid power generation system can meet the demand of ordinary household electricity.
KEYWORDS
PAPER SUBMITTED: 2022-06-26
PAPER REVISED: 2022-08-22
PAPER ACCEPTED: 2022-08-31
PUBLISHED ONLINE: 2023-03-25
THERMAL SCIENCE YEAR
2023, VOLUME
27, ISSUE
Issue 2, PAGES [1031 - 1039]
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