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Huahe Heavy Industries Co.,Ltd

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Variable-frequency Drive,VFD

- May 24, 2018 -

Variable-frequency Drive (VFD) is a power control device that USES frequency conversion technology and microelectronics to control the ac motor by changing the power supply frequency of the motor.

The converter is mainly composed of rectifier (alternating current dc), filtering, inverter (dc converter), braking unit, driving unit, unit of detection unit, and so on.

Internal IGBT inverter on the open circuit to adjust the output of the power supply voltage and frequency, based on the actual needs of the motor to provide the needed power supply voltage, thus achieve the goal of energy saving and speed, in addition, the protection of the inverter and there are many functions, such as over-current, over-voltage protection, overload protection, etc.

With the increasing of industrial automation, frequency converter has been widely used.

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