Synthesis of robust controller with an internal model for objects without self-alignment

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.108531

Keywords:

synthesis of controller, internal model, Н∞-norm, integral object, quality indicators

Abstract

We examined the synthesis of an automated control system, which ensures the required operation quality of objects without self-alignment. As a result of employing as an optimality criterion a minimum of the Н∞-norm of a transfer function of the closed system, we obtained structures of the controllers with an internal model for the objects without self-alignment of first and second order with a delay. It was found that such controllers had one adjustable parameter, which is a compromise between the quality and the robustness of the closed system. By changing this parameter, it is possible to receive different quantitative indicators of the system operation quality. We derived direct and unambiguous dependences of key quality indicators of the system on the parameter of Н∞-controller. Results of these dependences are entered into a database. Based on these data, we created a program that determines such settings of the controller, which provide the required quality of a control system.

Therefore, it is possible to ensure with a guarantee maintaining the assigned quality indicator, which is convenient for practice, or achieve the desired combination of several quality indicators that is executed over the entire range of system operation, thereby ensuring its robustness.

Author Biography

Taras Bahan, National technical university of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" Peremohy ave., 37, Kyiv, Ukraine, 03056

PhD, associate professor

Department of automation of heat and power processes

References

  1. Egupov, N. D. (Ed.) (2001). Methods of robust, neuro-fuzzy, and adaptive control. Мoscow: Izd-vo MGTU im. Baumana, 744.
  2. Mosca, E., Pandolfi, L. (Eds.) (1991). H-∞ Control Theory. London: British Library Cataloguing, 325. doi: 10.1007/bfb0084465
  3. O’Dwyer, A. (2009). Handbook of PI and PID controller tuning rules. Ireland: Dublin Institute of Technology, 624. doi: 10.1142/p575
  4. Brosilow, С., Joseph, B. (2002). Techniques of model-based control. USA: Prentice Hall, 704.
  5. Liu, T., Gao, F. (2011). Control of Single-Input-Single-Output (SISO) Processes. Advances in Industrial Control, 243–277. doi: 10.1007/978-0-85729-977-2_7
  6. Vilanova, R. (2008). IMC based Robust PID design: Tuning guidelines and automatic tuning. Journal of Process Control, 18 (1), 61–70. doi: 10.1016/j.jprocont.2007.05.004
  7. Lin, M. G., Lakshminarayanan, S., Rangaiah, G. P. (2008). A Comparative Study of Recent/Popular PID Tuning Rules for Stable, First-Order Plus Dead Time, Single-Input Single-Output Processes. Industrial & Engineering Chemistry Research, 47 (2), 344–368. doi: 10.1021/ie0704546
  8. Shamsuzzoha, M., Lee, M. (2007). IMC−PID Controller Design for Improved Disturbance Rejection of Time-Delayed Processes. Industrial & Engineering Chemistry Research, 46 (7), 2077–2091. doi: 10.1021/ie0612360
  9. Arrieta, O., Vilanova, R. (2011). Simple PID tuning rules with guaranteed Ms robustness achievement. IFAC Proceedings Volumes, 44 (1), 12042–12047. doi: 10.3182/20110828-6-it-1002.02251
  10. Alfaro, V. M., Vilanova, R. (2012). Simple Robust Tuning of 2DoF PID Controllers From A Performance/Robustness Trade-off Analysis. Asian Journal of Control, 15 (6), 1700–1713. doi: 10.1002/asjc.653
  11. Kovrygo, Y. M., Bahan, T. H. (2013). Method of design H∞-PID-controler for objects with delay. Naukovi visti NTUU "KPI", 1, 27–33.
  12. Kovrygo, Y. M., Bahan, T. H., Bunke, A. S. (2013). Methods to ensure stability of control systems based on pi and pid controllers. Eastern-European Journal of Enterprise Technologies, 3 (3 (63)), 58–63. Available at: http://journals.uran.ua/eejet/article/view/14740/12518
  13. Kovrygo, Y. M., Bahan, T. H., Bunke, A. S. (2014). Ensuring robustness in systems control of inertial heat power objects. Teploenergetika, 3, 9–14.
  14. Kovrygo, Y. M., Bahan, T. H., Uschapovskyi, A. P. (2014). Designing control systems with controller based on internal model with two degrees of freedom. Eastern-European Journal of Enterprise Technologies, 4 (11 (70)), 4–8. doi: 10.15587/1729-4061.2014.26307

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Published

2017-08-24

How to Cite

Bahan, T. (2017). Synthesis of robust controller with an internal model for objects without self-alignment. Eastern-European Journal of Enterprise Technologies, 4(2 (88), 27–33. https://doi.org/10.15587/1729-4061.2017.108531