Only know this can you buy the right solar inverter

Jul 31, 2023

Solar inverter is one of the important components of solar power generation system. Its role is to convert the direct current energy of solar panels into alternating current electricity, so that it can be directly sent to the grid for heating, lighting and electrical appliances. In this article, we will understand the basic principles of solar inverters and related keywords, so that you can have a deeper understanding of the working principle and function of solar inverters.

1. The working principle of solar inverter

Solar inverters work by converting the direct current emitted by solar panels into alternating current. This conversion process is accomplished through the intelligent electronic circuit control of the inverter.

First, the direct current emitted by the solar panel is aggregated through the collector wire into a DC power supply. The DC/DC converter inside the inverter then adjusts the voltage of the DC supply to a voltage range of 30V to 600V for connection to the AC grid.

Then, the inverter will convert the direct current into high frequency AC wave, through the output transformer for voltage reduction and boost adjustment, and finally through the filter circuit output clean AC power, supply to the grid.

The working principle of the solar inverter seems simple, but it contains many complex and sophisticated circuits and control systems to ensure stable operation under different light intensities and temperatures.

2. Types of solar inverters

Solar inverters are generally divided into two types: single-phase inverters and three-phase inverters.

Single-phase inverters can handle the single-phase power supply of relatively small solar power generation systems, and their prices are relatively cheap.

Three-phase inverters are an important part of dealing with larger power generation systems, and almost all commercial solar power plants require three-phase inverters to convert large amounts of solar electricity into alternating current.

In addition, solar inverters are also divided into series inverters and parallel inverters. Series inverters connect groups of solar panels in series to convert their direct current into alternating current through a single inverter. Parallel inverters connect groups of solar panels in parallel, with one inverter for each group of solar panels responsible for converting its direct current into alternating current.

growatt solar inverter

3. Category of solar inverter

There are many different brands of solar inverters available on the market today. Several common solar inverter brands are listed below.

(1) SMA inverter

SMA inverters is one of the most popular inverter brands in the world. It provides efficient and reliable inverters, and SMA inverters are also pioneers of modular inverters. SMA inverters are easy to install and maintain, and are highly praised by users worldwide.

(2) Fronius inverter

Fronius Inverters is an Austrian company founded in 1945. Fronius inverters offers a range of inverters for solar power systems of different sizes, the best of which are three-phase inverters.

(3) Solaredge inverter

Solaredge inverter adopts advanced technology and polysilicon technology to effectively improve the efficiency of solar power generation system. It is also responsible for the maximum power tracking of each power generation component, effectively improving the efficiency of solar panels.

(4) Enphase inverter

Enphase inverters provide efficient and reliable inverter equipment for single group power generation and small projects, suitable for many solar power systems.

Conclusion

In the future, solar power generation systems will continue to be widely developed and applied. The solar inverter occupies a crucial position in the system, which can convert the direct current emitted by the solar panel into alternating current for the power grid. Through the introduction of this article, I believe that you can also have a more in-depth understanding of solar inverters, help users choose more suitable for their own solar inverter equipment, and make greater contributions to the future solar power generation system.