The high performance vector control method for induction motor drive is discussed. In this control method, the primary voltage control scheme is employed, which is robust against variation of rotor resistance.
By indirect field orientation with feedforward decoupling compensation, the flux component current and the torque component current can be controlled independently.
The proposed vector control method is simple to implement, because no current feedback is used, and has been implemented using IBM-PC and external hardware circuits. This control scheme is compared with the conventional vector control scheme which uses local current feedback for quick torque response.
