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DSP-based robust control of an AC induction servo drive for motion control

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1 Author(s)
Ying-Yu Tzou ; Dept. of Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

A design method based on the internal model control (IMC) theory has been developed for the robust control of a low-power AC induction servo drive in application of high-performance motion control systems. Indirect vector control with software current control technique has been developed to achieve fast response decoupling control of the induction motor. An equivalent model representing the control dynamics of the decoupled AC induction motor is used for the analysis and synthesis of the IMC controller. To improve the control performance of the servo drive with given frequency-domain robustness specifications, a design procedure for the servo controller is developed based on the IMC theory. The proposed control scheme has been realized using the Texas Instruments TMS320C14 single-chip digital signal processor. Experimental results are given to verify the proposed design method

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:4 ,  Issue: 6 )