Solar Inverter Is the Critical Balance Point of Photovoltaic System Components

A solar AC power generation system is composed of solar panels, a charge controller, an inverter, and a battery, while a DC power generation system does not include an inverter. The process of converting AC electrical energy into DC electrical energy is called rectification. The circuit that completes the rectification function is called a rectification circuit, and the device that accomplishes the rectification process is called a rectifier.

Understanding the solar inverter

The solar inverter is a critical balance point in the PV system, allowing the use of conventional AC power supply equipment. The solar inverter has special functions applicable to PV arrays, including power point tracking and anti-islanding protection. The solar inverter, also known as a power conditioner or power regulator, is an essential part of a PV system. The main function of the solar inverter is to convert the DC power generated by the solar panel into AC power for household use, and all the power generated by the solar panel must be processed by the inverter before it can be output externally.

Characteristics of the solar inverter

The main characteristic of the solar inverter is centralized inversion and string inversion. We can imagine that the scale of a solar power generation system is generally very large. If one solar panel corresponds to one inverter, it will cause resource waste, which is not practical. Therefore, in actual production, the solar inverter centrally inverts all the DC power generated by the solar panels into AC power. Therefore, the scale of the solar inverter generally adapts to the scale of the solar panels. Therefore, a single solar inverter is obviously unable to meet this requirement, which creates another characteristic of the solar inverter, which is often used in strings.

Functions of the solar inverter

In fact, the function of the solar inverter is not only to invert, but also to have two very important functions. First, the solar inverter can control the operation and stop of the host. As we all know, the sunlight is different at different times of the day. The inverter can operate at different rates according to the strength of the sunlight, and it will automatically stop working at sunset or rainy days, which can protect the solar power generation system to a certain extent. Secondly, it has the function of maximum power tracking control, which can automatically adjust its power based on the intensity of radiation, so that the solar power generation system can operate normally.