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Optimizing stability bounds of finite-precision PID controllers using adaptive simulated annealing

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3 Author(s)
Chen, S. ; Dept. of Electr. & Electron. Eng., Portsmouth Polytech., UK ; Istepanian, R.H. ; Wu, J.

Based on a lower bound stability measure for sampled-data controller structures subject to finite-word-length (FWL) constraints, the optimal realization of the digital PID controller with FWL considerations is formulated as a nonlinear optimization problem. An efficient strategy based on adaptive simulated annealing is adopted to solve this complex optimization problem. A numerical example of optimizing the finite-precision PID controller for a steel rolling mill system is used to demonstrate the effectiveness of the proposed method

Published in:

American Control Conference, 1999. Proceedings of the 1999  (Volume:6 )

Date of Conference:

1999