What is the role of PV grid-connected inverter in a solar power supply system

2017-09-1352

What is the role of PV grid-connected inverter in solar power supply system?

The inverter is a device that changes the current pattern, and its main function is to convert the direct current output from the solar cell array into alternating current. The core of the inverter device is the inverter switching circuit, which is referred to as the inverter circuit. The inverter circuit completes the function of inverter through the conduction and shutdown of power electronic switches.

What is the role of the regulation controller in a solar power supply system?

The regulation controller is a control device in the solar cell power supply system, and its main function is to control the battery to charge and protect the battery when the load is discharged. Control the short circuit of the load line and protect  the solar photovoltaic power generation system device.

What is the photovoltaic effect in an inverter?

The photovoltaic effect refers to when an object is exposed to light. The change of charge distribution in the object results in the electromotive force and current effects. At this time, no external power supply is required. As long as there is light, they can generate electromotive force, and when the load is connected, there is an electric current. Like batteries, this kind of photoelectric components are called "photocells". The photovoltaic effect can be divided into 3 types: metal-semiconductor contact, P-N junction contact, and Dember effect.

The P-N junction contact technology is mature, develops rapidly, and has high photoelectric conversion efficiency, and solar cells are mainly of this type.





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