Photovoltaic inverters are inverters that convert variable direct voltage generated by photovoltaic (PV) solar panels into line frequency alternating current (AC), which can be fed back into commercial transmission systems or used off-site. network. to use.
Photovoltaic inverters use MPPT (Maximum Power Point Tracking) technology to extract the maximum possible power from solar panels.
There is a complex relationship between solar irradiation, temperature and total resistance of solar cells, so the output efficiency will change non-linearly, called current-voltage curve (I-V curve ).
The purpose of tracking the maximum power point is to determine the power of the solar module in each environment and generate a load resistance (of the solar module) to obtain the maximum power.
A photovoltaic inverter is un device that converts DC energy generated by solar panels into AC energy from the mains. It plays a vital role in the field of solar power generation and is an essential part of the solar power generation system. Through the conversion function of the inverter, the electricity generated by solar panels can be used by homes, businesses or factories to achieve the ultimate goal of solar power generation.
Photovoltaic inverters can be divided into two types: single-phase inverters and three-phase inverters. Single-phase inverters are suitable for homes or small commercial buildings, and their output power is generally between 1-5 kW, while three-phase inverters are suitable for large commercial buildings or power plants, and their output power can reach tens , even hundreds. kilowatts. Whatever the ttype of inverter, its main function is to convert the DC energy generated by solar cells into AC energy so that it can be used for power supply.
Today, with the continuous improvement of solar power generation technology and the continuous reduction of costs, solar power generation has become a solution for clean energy becoming more and more popular. Photovoltaic inverter is an indispensable part of the solar power generation process and the key to the conversion and utilization of solar energy. In the future, with the continuous improvement of photovoltaic inverter technology, solar power generation will be applied to more and more fields.