A photovoltaic inverter is a device specifically designed to convert direct current (DC) generated by a solar photovoltaic module into alternating current (교류). Since most household and industrial equipment uses alternating current, photovoltaic inverters play a key role in solar power generation systems.

The main functions and features of photovoltaic inverters include:

1.Power conversion: Converts direct current generated by photovoltaic modules into alternating current that meets grid standards to supply homes or other loads.

2.Maximum power point tracking (MPPT) : Photovoltaic inverters are usually equipped with maximum power point tracking technology, which is able to monitor the output of photovoltaic panels in real time and adjust the operation of the inverter to ensure that the system always outputs maximum power under different lighting conditions.

3.Network and function: some photovoltaic inverters can generate electricity into the grid, users can sell excess electricity to the grid company, and even get a certain electricity subsidy.

4.Safety protection: photovoltaic inverters usually have a variety of protection functions, such as overload protection, short circuit protection and anti-reflux function to ensure the safe and stable operation of the system.

5.Monitoring and management: Modern photovoltaic inverters are often equipped with monitoring systems, and users can view information such as power generation, energy efficiency and system status in real time through mobile phones or computers.

There are several different types of photovoltaic inverters, including:

Series inverters: Connected in series with multiple PV modules, suitable for most domestic and industrial applications.
Micro inverters: Each PV module is equipped with an inverter, which can achieve higher system efficiency and flexibility, especially for places with high shadow impact.
Centralized inverter: Suitable for large photovoltaic power plants, the direct current of multiple photovoltaic modules is converted to alternating current centrally, usually with higher efficiency.

With the continuous progress of photovoltaic technology, the function and efficiency of photovoltaic inverters are also constantly improving, helping users make better use of solar energy resources.