Introduction to inverters: structure, operating principles and
Inverter circuits usually consist of power semiconductor devices (such as thyristors, IGBTs, MOSFETs, etc.) and corresponding control circuits to achieve voltage and
An inverter uses this feature to freely control the speed and torque of a motor. This type of control, in which the frequency and voltage are freely set, is called pulse width modulation, or PWM. The inverter first converts the input AC power to DC power and again creates AC power from the converted DC power using PWM control.
The multiple-function keyboard of 300 hp frequency drive inverters can control the operation of the 220 kW inverter, such as start, stop, and acceleration. The customer can press the buttons to make the 3 phase inverter work according to set the variable frequency inverter parameters or control the frequency inverter machine's operating speed.
220 kW 300 hp variable frequency drive inverter, input voltage three phase 220V, 415V, 460V AC for selection, tracking motor speed in real time to protect the motor from impact. Output frequency 0~1000Hz and speed regulation 1:100. Come with force cooling fan, 3 phase inverter has good heat dissipation function to protect internal parts.
The inverter first converts the input AC power to DC power and again creates AC power from the converted DC power using PWM control. The inverter outputs a pulsed voltage, and the pulses are smoothed by the motor coil so that a sine wave current flows to the motor to control the speed and torque of the motor.
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