What Is A Solar Inverter?

March 15,2022

Today, this paper introduces the function and role of solar inverter.


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What Is Solar Inverter?


Inverter, also known as power regulator, is an essential part of photovoltaic system. The main function of photovoltaic inverters is to convert the direct current generated by solar panels into the alternating current used by home appliances. All the electricity generated by the solar panel can only be exported through the processing of the inverter.


Functions Of Solar Inverter


Inverter does not only have direct AC conversion function, but also have the maximum limit to carry forward the function of solar cell and system maintenance function. It comes down to active operation and shutdown function, maximum power tracking control function, prevent independent operation function (grid-connected system), active voltage adjustment function (grid-connected system), DC detection function (grid-connected system), DC grounding detection function (grid-connected system). The functions of active operation and shutdown and maximum power tracking and control are mainly introduced here.


Active operation and shutdown function


After sunrise in the morning, the solar radiation intensity gradually increases, and the output of the solar cell also increases. When the output power required by the inverter task is reached, the inverter starts to operate actively. After entering operation, the inverter will watch the output of the solar cell module every moment. As long as the output power of the solar cell module is greater than the output power required by the inverter task, the inverter will continue to operate. Until sunset, the inverter can operate even on rainy days. When the solar cell module output becomes smaller and the inverter output approaches 0, the inverter will form the standby mode.


Maximum power tracking control function


The output of the solar cell module is changed with the solar radiation intensity and the temperature of the solar cell module itself (chip temperature). In addition, because the solar cell module has the characteristic that the voltage decreases with the increase of the current, there exists the best task point that can obtain the maximum power. The intensity of solar radiation is changing, so is the obvious optimal mission point. Related to these transitions, the task point of the solar cell module is always at the maximum power point, and the system always obtains the maximum power output from the solar cell module, which is the maximum power tracking control. The biggest characteristic of solar power system inverter is to include the maximum power point tracking (MPPT) function.


In The End


This is a brief introduction of solar inverter. We will continue to update blogs of our other products, welcome to follow our website. If you need more information to place orders, welcome to contact us directly.