HI ALL,
CAN ANYBODY EXPLAIN ME IN BRIFE, WHAT IS THE DIFFERENCE BETWEEN MOTION CONTROL AND VECTOR CONTROL?
PLEASE EXPLAIN WITH APPLICATION, BECAUSE I NEVER APPLY THESE THINGS.

 

Hi,
Basically it Vector control is an advance tech. of normal drive which works on V/F control.
In Induction motor the starting current depends on the amount of voltage at input and torque genrated is inversely proportional to the freq. so if we can control V/F ratio we get 100% torque with less starting current.
the current has two component one Magnetising current and other Torque genrating component.
Magnetising current is the minimum current ( No load current) and increase in it does not help in better control of motor. In v/f control we have no control over this current vector but in vector control we apply the pulses in such a way that magenetic component is statiory and torque genrating component is increased.

Motion control is used basically with servo motors to get better speed and position accuracy and not primiraly with induction motor.