What are AC drives?

What are AC drives?

AC drives (Variable-frequency Drive, VFD) are power control devices that use variable frequency technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.

AC drives are mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit and micro-processing unit. AC drives adjust the voltage and frequency of the output power supply by the breaking of internal IGBTs, and provide 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, AC drives have many protection functions. , Such as overcurrent, overvoltage, overload protection and so on. With the continuous improvement of industrial automation, AC drives have also been widely used.

Application of AC drives:

Vector control platform products are powerful and excellent in performance. They can be widely used in small and medium power applications, such as food machinery, plastic machinery, ceramic equipment, petroleum machinery, cable machinery, air compressors, machine tools, woodworking machinery, textile machinery, printing and packaging equipment , Chemical equipment, environmental protection equipment, transportation equipment, etc.

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