What Does a Solar Inverter Do?

Solar inverter not only has the function of DC-AC conversion but also the function of maximizing the performance of solar cells and the function of system failure protection. In short, there are automatic operate and shutdown functions, maximum power tracking control function, anti-private operation function (for the grid-connected systems), automatic voltage regulation function (for the grid-connected system), DC detection function - grid-connected (for the grid-connected system) systems) - connection system) and DC ground detection. Function (for the grid-connected system). We mainly introduce the automatic operation and shutdown function and the maximum power tracking control function of the Solar inverter.

Here is the content list:

• Automatic operation and shutdown function of Solar inverter

• Solar inverter maximum power tracking control function

Automatic operation and shutdown function of Solar inverter

After sunrise in the morning, the intensity of solar radiation increases gradually, and the output of the solar cell increases accordingly. When the output power required by the Solar inverter is reached, the Solar inverter starts to run automatically. After starting to run, the Solar inverter will monitor the output of the solar cell components all the time. As long as the output power of the solar cell components is greater than the output power required by the task of the Solar inverter, the Solar inverter will continue to operate; until sunset stops, even if it is cloudy and rainy, the Solar inverter will continue to run. The inverter also works. When the outputs of the solar modules become smaller and the output of the solar inverters is close to 0, the solar inverters will form a state of standby.

Solar inverter maximum power tracking control function

The output of the solar inverter's battery module changes with the intensity of solar radiation and the temperature of the solar battery module itself (chip temperature). In addition, since solar modules have the characteristic that the voltage decreases with current, there is an optimal working point that can obtain the maximum power. The intensity of solar radiation is changing, and the optimum working point is also changing. Regarding these changes, the operating point of the solar inverter battery module is always at the maximum power point, and the system always obtains the maximum power output from the solar battery module. This type of control is the maximum capacity tracking control. The most characteristic feature of the solar inverter used in solar power systems is that it includes the maximum power point tracking function (MPPT).

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