Design, implementation and validation of a self-tuning pid controller

  • Leonardo F. Lozano-Valencia Universidad Tecnológica de Pereira, Pereira
  • Luis F. Rodríguez-García Universidad Tecnológica de Pereira, Pereira
  • Dídier Giraldo-Buitrago Universidad Tecnológica de Pereira, Pereira
Keywords: PID control, automatic tuning, online estimation, pole placement, parameter variation.

Abstract

In this paper the design and the implementation of a self-tuning PID controller is presented. The proposed methodology uses a least squares method with covariance resetting and a pole placement design for the calculation of controller parameters. The proposed design is implemented on stable and unstable systems simulated in a COMDYNA GP-6 analog computer, and a comparison of the performance of the self-tuning controller and a classic PID controller is presented in terms of root mean square error. The obtained results show that controllers of adaptive parameters have a better response than controllers of fixed parameters with respect to parameter variations that may affect the conditions of the system.

Author Biographies

Leonardo F. Lozano-Valencia, Universidad Tecnológica de Pereira, Pereira
Programa de Ingeniería Eléctrica, Universidad Tecnológica de Pereira, Pereira-Colombia
Luis F. Rodríguez-García, Universidad Tecnológica de Pereira, Pereira
Programa de Ingeniería Eléctrica, Universidad Tecnológica de Pereira, Pereira-Colombia
Dídier Giraldo-Buitrago, Universidad Tecnológica de Pereira, Pereira
Programa de Ingeniería Eléctrica, Universidad Tecnológica de Pereira, Pereira-Colombia
How to Cite
[1]
L. F. Lozano-Valencia, L. F. Rodríguez-García, and D. Giraldo-Buitrago, “Design, implementation and validation of a self-tuning pid controller”, TecnoL., no. 28, pp. 33-53, Jun. 2012.

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Published
2012-06-25
Section
Research Papers
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