The Principle of the Photovoltaic Power Generating System
Photovoltaic Power Generation Systems begin with the solar module. The solar modules capture solar energy and generate direct current (DC) electricity. Inverters (power conditioners) convert DC into AC (alternating current) to run many common appliances and equipment.
Residential Use Grid-Connected Photovoltaic Power Generation System
Examples of Stand-Alone Photovoltaic Power Generation Systems
1. Photovoltaic Power Generation System for a village (centralised system)
Photovoltaic power generation capacity: Over 10 kW
Targeted facility: Village/Suburb
Use: Lighting, TVs, washing machines, refrigerators, street lights
Advantages:
• Load capacity at the terminal/station is arbitrary, making the electricity supply more flexible.
• Operation and control of the Photovoltaic (PV) Generation System can be centralised.
• A facility supervision system can be easily formed.
2. Photovoltaic Power Generation System for school, medical clinic, public hall,or residential house
Photovoltaic power generation capacity: 1 - 10 kW
Targeted facility: School, medical clinic, public hall, orresidential house
Use: TVs, VCRs, telecommunication equipment, lighting
Advantages:
• Able to give priority in supplying electric power to public buildings and electrified facilities.
• Easy to collect fees such as for use of facilities, food storage, recharging, and water.
• Facility management staff can concurrently control system operation.
• Effective for improving living standards.
3. Solar Home System (SHS)
Photovoltaic power generation capacity: Less than 300 W
Targeted facility: Individual house
Use: Lighting, TV, radio, or street light
Advantages:
• System structure is simple.
• Ideal for use in decentralised villages.
• Can be used conscientiously, since users are in individual housing.
