研究目的
To design and manufacture a solar micro power plant for home lighting using economical and easily obtainable components, providing a solution for rural and urban communities with energy efficiency and affordable prices.
研究成果
The designed solar micro power plant operates effectively for home lighting, with calculations showing the battery can last approximately 4.86 nights when fully charged and up to 18 hours with 7 hours of charging. It offers an economical, environmentally friendly solution for communities with limited electricity access, though further improvements are needed for broader applications.
研究不足
The system depends on weather conditions and sunlight availability, which can vary; it only provides power for lighting and may not support higher power demands; components are basic and may require optimization for efficiency and scalability.
1：Experimental Design and Method Selection:
The methodology includes literature study, observation, design, and implementation of a solar micro power plant. The design is based on the photoelectric principle using solar cells to convert sunlight into electrical energy, with components selected for cost-effectiveness and availability.
2：Sample Selection and Data Sources:
The system uses a solar panel with a capacity of 50 W, a variable voltage regulator, a dry battery (35 Ah GSMFN NS40), and DC LED light bulbs (3W each). Measurements are taken in indoor and outdoor environments over several days.
3：List of Experimental Equipment and Materials:
Solar module panel (50 W capacity), variable voltage regulator (12V-20V input, 12V output, 3A current), battery (dry battery 35 Ah GSMFN NS40), lamps (DC D/Cd 3W LED light bulbs, 3 pieces).
4：Experimental Procedures and Operational Workflow:
Step 1: Measure solar panel voltage without load (indoor and outdoor). Step 2: Assemble the power plant and test panel and battery without load. Step 3: Test with lamps turned on gradually (1, 2, then 3 lamps). Step 4: Analyze battery capacity and charging performance using equations based on measured currents and voltages.
5：Data Analysis Methods:
Data is analyzed using calculations for battery charging time and lamp runtime, involving equations such as battery capacity divided by current to determine hours of operation.
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