The role of AC inverter

No area of ​​AC motors and other related shaft rotating applications across all industries has had a greater impact than AC drives. The drives’ ability to accurately control motor speed and torque, reduce overall energy consumption, and minimize equipment wear opens the door to many applications that previously required more complex and expensive electromechanical solutions.

The inverter is mainly composed of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, detection unit, microprocessor unit, etc. The inverter adjusts the voltage and frequency of the output power supply by the internal IGBT opening and closing, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions, such as over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, inverters have also been widely used.

AC frequency converter is a speed regulating device with adjustable output voltage and frequency.

AC frequency converter is actually an inverter. It first converts AC power into DC power, and then uses electronic components to switch the DC power to convert it into AC power.

Generally, AC inverters with higher power use thyristors and are equipped with an adjustable frequency device to make the frequency adjustable within a certain range. This is used to control the number of revolutions of the motor so that the number of revolutions can be adjusted within a certain range.

The frequency converter is a power regulation device, which is mainly used to control the speed and running status of AC motors. It can convert fixed-frequency AC power into adjustable-frequency AC power, thereby achieving speed regulation and control of the motor.

The functions of AC inverter mainly include the following aspects:

Energy saving and consumption reduction: By adjusting the speed of the motor, it can run under different loads, thus achieving the purpose of energy saving and consumption reduction.

Improve production efficiency: By adjusting the speed of the motor, it can run under different working conditions, thereby improving production efficiency and production quality.

Enhance equipment reliability: By protecting and controlling the motor through the inverter, the service life of the motor can be extended and the failure rate of the equipment can be reduced.

Reduce noise and vibration: By adjusting the speed and operating status of the motor, the noise and vibration of the equipment can be reduced and the comfort of the working environment can be improved.

In short, the function of AC inverter is to regulate and control the speed of AC motor, so as to achieve energy saving and consumption reduction, improve production efficiency, enhance equipment reliability, reduce noise and vibration, etc.