A robust induction motor servo drive

A position controller, considering the effects of system dead-time and parameter variations, for induction motor servo drives is proposed in this paper. First a DSP-based computer controller indirect field-oriented induction motor servo drive is implemented and its dynamic model at the nominal case is estimated from measurements. Based on this model, an integral plus proportional (IP) controller is quantitatively designed to match the prescribed position tracking specifications. Then a dead-time compensator (DTC) and a simple robust controller (RC) are designed and augmented to reduce the effects of system dead-time on the stability and the performance degradation due to parameter variations. The prescribed drive tracking specifications can be preserved under parameter variations. Rather good load regulating response can also be obtained. Some experimental results are provided to demonstrate the effectiveness of the proposed controllers.<<ETX>>

[1]  Faa-Jeng Lin,et al.  Design and implementation of a high performance induction motor servo drive , 1993 .

[2]  Robert D. Lorenz.  Tuning of Field-Oriented Induction Motor Controllers for High-Performance Applications , 1986, IEEE Transactions on Industry Applications.

[3]  T.C.S. Hsia,et al.  A new technique for robust control of servo systems , 1989 .

[4]  Chung-Yuen Won,et al.  Time optimal control for induction motor servo system , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[5]  C. C. Chan,et al.  Adaptive decoupling control of induction motor drives , 1990 .

[6]  Paresh C. Sen,et al.  Analog and Digital Speed Control of DC Drives Using Proportional-Integral and Integral-Proportional Control Techniques , 1987, IEEE Transactions on Industrial Electronics.

[7]  A. Bahill.  A simple adaptive Smith-predictor for controlling time-delay systems: A tutorial , 1983, IEEE Control Systems Magazine.

[8]  Hirofumi Akagi,et al.  The generalized theory of indirect vector control for AC machines , 1988 .

[9]  P. C. Sen,et al.  A microcontroller-based induction motor drive system using variable structure strategy with decoupling , 1990 .

[10]  Bimal K. Bose,et al.  Technology trends in microcomputer control of electrical machines , 1988 .

[11]  C. Pan,et al.  Reduced-Order Parameter Estimation for Continuous Systems From Sampled Data , 1990 .

[12]  Ying-Yu Tzou,et al.  LQG/LTR robust control of an AC induction servo drive , 1991, PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference.