Small power inverter is one of the independent AC photovoltaic system is an important part of household, the reliability and efficiency of the promotion of photovoltaic systems, energy solar inverters efficient, reduce the cost of essential system? Thus PV experts in various countries have been working to develop suitable for indoor use power inverter, to promote better and faster development of the industry.
PV systems with small power inverter power inverter power by converting technology can be divided into frequency conversion and high conversion. Frequency transformation is the use of discrete devices or manifold generate 50Hz square wave signal, then the signal is to promote the use of the power switch, the use of frequency step-up transformer produces 220V AC. This power inverter simple structure, reliable operation, but because of defects in the circuit structure itself, not suitable with inductive loads, such as refrigerators, electric fans, water pumps, fluorescent DC AC power inverters lighting. In addition, due to the use of this power inverter frequency transformer, thus bulky, heavy, high price. Currently mainly used in large-scale solar photovoltaic power plants.
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