The scale and application form of photovoltaic systems are different. For example, the system size span is large, as small as a few watts of solar courtyard lights, as large as the MW -level solar photovoltaic power plant. The solar power generation system consists of a solar cell group, solar controller, and battery. If the output power supply is 220V or 110V, the inverter needs to be configured. The role of each part is:
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