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Solar power system composition
- Mar 26, 2018 -

Solar power system composition

Solar power system advantages:

1. Safe and reliable, no noise, no radiation, no need to consume fuel, no mechanical rotating parts, low failure rate, long service life;

2. Environmental protection and beautiful, free from geographical restrictions, construction period is short, the size of random, easy disassembly, easy to move;

3. Ready to use, low cost of disassembly and assembly, can be easily combined with the building, without the need for high overhead transmission lines, can avoid the damage to the vegetation and the environment and the project cost when laying cables at a long distance;

4. Voltage stability, high power quality, widely used in a variety of electrical equipment, very suitable for rural areas, farms, hills, islands, highways and other remote places of electricity, is also very good emergency backup power.

Solar power system composition:

Solar photovoltaic power generation systems are mainly composed of solar panels, solar controllers, maintenance-free lead-acid batteries and AC-DC inverters. The core components are photovoltaic cells and controllers. The role of various components in the system is:

1. Solar panels: Solar panels are the core part of solar power systems and the most valuable part of solar power systems. Its role is to convert the sun's radiant power into electrical energy, or send it to a storage battery, or push the load to work.

2. Solar controller: The role of the solar controller is to control the working status of the entire system and play the role of overcharge protection and over-discharge protection of the battery. In areas with large temperature differences, qualified controllers should also have temperature compensation. Other additional functions such as light control switch, time control switch should be optional controller;

3. Storage batteries: Generally lead-acid batteries, nickel-metal hydride batteries, nickel-cadmium batteries or lithium batteries can also be used in small-scale micro-systems. Its role is to store the electric energy emitted by the solar panel when there is light, and release it when needed.

4. Inverter: The direct solar output is usually 12VDC, 24VDC, 48VDC. In order to supply electric energy to 220VAC electric appliances, it is necessary to convert the DC electric energy generated by the solar power generation system into AC electric energy, and therefore it is necessary to use a DC-AC inverter.

Solar Power System Design Considerations

1. Where is the solar power system used? How is the solar radiation in the area?

2. What is the load power of the system?

3. What is the output voltage of the system, DC or AC?

4. How many hours does the system need to work every day?

5. If there is rainy weather without sunlight, how many days does the system need to supply power continuously?

6. What is the load condition, purely resistive, capacitive, or inductive, and what is the starting current?

7, The number of system requirements.