Adaptive decouplers for multivariable systems : input dynamics compensation and output feedback approaches

An adaptive decoupler based on input dynamics compensation (AMiFIR) and another adaptive decoupler based on output feedback (ADaHiD) are proposed. Both schemes have advantages over previous works in terms of conceptual simplicity and computation efficiency. AMiFIR take advantage of the finite impulse response filter structure to simplify the design procedure whereas ADaHiD is an extension of the well-known SISO Dahlin-Higham controller. The minimal order of AMiFIR with exact decoupling is determined under certain conditions. Comparisons are made between the implementation aspects of the two adaptive decouplers. Examples and simulation results are given to illustrate the design and performance of the schemes.

[1]  Ulf Borison,et al.  Self-tuning regulators for a class of multivariable systems , 1979, Autom..

[2]  Duncan A. Mellichamp,et al.  A decoupling pole placement self‐tuning controller for a class of multivariable processes , 1986 .

[3]  M. M. Bayoumi,et al.  Adaptive decoupling control of mimo systems , 1989 .

[4]  Rolf Isermann.  Digital Control Systems , 1981 .

[5]  H. R. Sirisena,et al.  Multivariable pole-zero placement self-tuning controller† , 1986 .

[6]  Graham C. Goodwin,et al.  Adaptive filtering prediction and control , 1984 .

[7]  William A. Wolovich,et al.  Parameterization issues in multivariable adaptive control , 1984, Autom..

[8]  David R. Hill,et al.  Experiments in computational matrix algebra , 1987 .

[9]  T. Fong-Chwee,et al.  Self-tuning PID controllers for dead time processes , 1988 .

[10]  C. K. Yuen,et al.  Theory and Application of Digital Signal Processing , 1978, IEEE Transactions on Systems, Man, and Cybernetics.

[11]  Ioan Doré Landau,et al.  On the recursive identification of multi-input, multi-output systems , 1978, Autom..

[12]  Norman S. Nise,et al.  Control Systems Engineering , 1991 .

[13]  B. Wittenmark,et al.  Adaptive decoupling of multivariable systems , 1987 .

[14]  Bernard Widrow,et al.  Adaptive inverse control , 1987, Proceedings of 8th IEEE International Symposium on Intelligent Control.

[15]  Shi-Jun Lang,et al.  A multivariable generalized self-tuning controller with decoupling design , 1986 .

[16]  Michel Kinnaert,et al.  A new decoupling precompensator for indirect adaptive control of multivariable linear systems , 1987 .

[17]  William A. Wolovich.  Multipurpose controllers for multivariable systems , 1981 .