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Experimental investigation of high performance induction motor control based on optimal preview controller

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3 Author(s)
Negm, M.M. ; Fac. of Eng., Ain Shams Univ., Cairo, Egypt ; Salem, M.F. ; Ebrahim, O.S.

High performance induction motor (IM) drive system fed from space vector pulse width modulated (SVPWM) inverter and based on optimal preview control theory is realized by using low cost multifunction data acquisition card (DAC). The synthesized control algorithm achieves motor speed control, constant flux control and field orientation control via an optimized input vector command contains the synchronous angular speed and the two components of the stator voltage space vector in the synchronous reference frame. The input vector command is realized by generating sector dependent digital words represent the SVPWM switching patterns on the DAC digital lines therefore, the storage memory is minimized and the saw tooth carrier generator is eliminated. The novel error system used in building the optimal preview controller can cure the adverse phenomena caused by parameter uncertainty and unmodeled dynamics. Also few future values of the desired and disturbance signal improve the transient response of the drive system. Extensive experimental results have been carried out to show the effectiveness and applicability of the proposed control system.

Published in:

Industrial Technology, 2004. IEEE ICIT '04. 2004 IEEE International Conference on  (Volume:1 )

Date of Conference:

8-10 Dec. 2004