Structure And Working Principle Of Photovoltaic Inverter

Structure and Working Principle of Photovoltaic Inverter

Photovoltaic inverter is composed of circuit boards, fuses, power switch tubes, inductors, relays, capacitors, display screens, fans, radiators, structural parts and other components.

Inverters are mainly used to convert DC power into AC power. It is generally composed of a boost circuit and an inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for inverter output control; the inverter bridge circuit converts the boosted DC voltage into an AC voltage with a common frequency equivalently.
The inverter not only has the function of DC-AC conversion, but also has the function of maximizing the performance of the solar cell and the function of system fault protection. To sum up, there are automatic operation and shutdown function, maximum power tracking control function, anti-independent operation function (for grid-connected system), automatic voltage adjustment function (for grid-connected system), DC detection function (for grid-connected system), DC grounding detection Function (for grid-connected systems). Here is a brief introduction to the automatic operation and shutdown functions and the maximum power tracking control function.

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