IR Compensation in DC Drive
IR compensation is an essential feature in DC drives and VFD to ensure speed regulation, especially when tachometer feedback is unavailable. The following sections explain
speed control of motor
Why V/f Ratio is Kept Constant in VFD?
In VVVF drive, the V/f ratio is kept constant to maintain the rated flux in the motor. The higher V/f ratio causes the motor’s core to