Solar power system consists of solar panel, solar controller, batteries, if the output power is 220V AC or
110V AC, also need to configure the inverter.
The role of each component as follows:
Solar panel
Solar panel is the core part of solar power system, also the highest part of the whole system worth. The
function is convert the sun’s radiation to electrical energy, or stored in batteries, or promote the work
load. Quality and cost of solar panels will directly determine the quality and cost of the whole system.
Solar controller
Solar controller’s role is to control the working status of the entire system, and play a battery charge
protection, over-discharge protection role. In a large temperature difference place, a qualified controller
should have temperature compensation function. Other additional function such as light control switch, time
control switch should be the controller options.
Battery
Lead-acid batteries is generally, small micro-system, also used nickel metal hydride batteries, nickel
cadmium batteries or lithium batteries. The function is store the electrical energy from the solar panel,
and re-release when you need.
Inverter
On many occasions, we need to provide 220VAC, 110VAC power, because of the direct solar energy output are
generally 12VDC, 24VDC, 48VDC, in order to provide power to 220VAC appliances, we need to convert the DC
energy from solar power system into AC electrical energy., so the DC-AC inverter is using. In some cases,
the need to use a variety of load voltage, also use DC-DC inverter. Such as converting the 24VDC power into
5VDC electrical energy. (Note that is not a simple buck)
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