What are the categories of inverters?

There are various types of inverters, so how to select an inverter?

According to the photovoltaic power generation method can be divided into

stand-alone PV power system inverters and grid-connected PV power system inverters.

According to the waveform of the inverter output

(1) Square wave inverter. The square wave inverter outputs a square wave AC voltage waveform. This type of inverter can be realized by different inverter topologies. But its common feature is that the circuit is relatively simple and uses a small number of power switching tubes.

(2) Stepped wave inverter. This type of inverter outputs an AC voltage waveform as a step wave. And the number of steps in the output waveform varies greatly due to the fact that there are a number of different circuit configurations for step wave inverters.

(3) Sine wave inverter. The output AC voltage waveform of the sine wave inverter is sinusoidal. The advantages of sine wave inverter are: good output waveform, very low distortion, low interference to audio and communication equipment, and low noise.

According to the inverter output AC energy points

According to the frequency of the inverter output AC power can be divided into: industrial frequency inverter. (industrial frequency inverter frequency of 50 ~ 60Hz inverter). Intermediate frequency inverter (intermediate frequency inverter frequency is generally 400Hz to dozens of kilohertz).High-frequency inverter. (high-frequency inverter frequency is generally dozens of kilohertz to megahertz level).

According to the number of phases output from the inverter

According to the number of phases of the inverter output can be divided into: single-phase inverter, three-phase inverter and multi-phase inverter.