Xinjie inverter control motor method

Create Date: 2024-8-30 12:03:23|Source: XINJE

The Variable-Frequency Drive (VFD) controls the speed and operation of the motor by adjusting the frequency and amplitude of the output voltage. Specifically, the VFD controls the speed of the motor mainly through the following steps:

Collect input signals: The VFD first collects input signals from the control system or operation panel, including parameters such as the required speed setpoint, operating form, etc.

Speed calculation: According to the input signal and the internal control algorithm of the VFD, the VFD will calculate the current speed at which the motor should run.

                               Xinjie inverter control motor method   ​

PWM Signal Generation: Based on the calculated rotational speed, the VFD generates the corresponding PWM (Pulse Width Modulation) signal.

Pulse Width Modulation: The PWM signal is converted into a series of pulsed signals through the pulse width modulation module. The width and distance of the pulses can be controlled according to the required rotational speed.

Output Voltage Conditioning: The pulse signal passes through the output circuit to adjust the amplitude and frequency of the output voltage of the VFD. The frequency of the output voltage is the required speed.

Power supply motor: The output voltage is supplied to the motor through the output port of the VFD. The motor runs at the corresponding speed according to the voltage and frequency provided by the VFD.

By constantly adjusting the frequency and amplitude of the output voltage, the VFD can complete accurate speed control, and then meet the needs of different working conditions, improving the operation efficiency and control accuracy of the motor.

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