Research Article Open Access

Designing of PID Controller for Discrete Time Linear System Using Balanced Approach Reduced Order Model

C.S. Ravichandran, S. Subha Rani and T. Manikandan

Abstract

Modeling physical systems usually results in complex high-order dynamic models. It is often desirable to approximate these models by simpler models with reduced order. This study deals with the design of discrete time linear system using a balanced approach reduced order model. The reduced order model retains the desired state variable which contains a significant contribution. A PID controller is designed for the reduced second order model to meet the desired performance specifications by using pole-zero cancellation method. The stabilization of linear discrete time system is achieved by selection of parameters of the PID controller. A numerical example is given to illustrate the design method.

American Journal of Applied Sciences
Volume 4 No. 3, 2007, 155-159

DOI: https://doi.org/10.3844/ajassp.2007.155.159

Submitted On: 31 January 2007 Published On: 31 March 2007

How to Cite: Ravichandran, C., Rani, S. S. & Manikandan, T. (2007). Designing of PID Controller for Discrete Time Linear System Using Balanced Approach Reduced Order Model. American Journal of Applied Sciences, 4(3), 155-159. https://doi.org/10.3844/ajassp.2007.155.159

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Keywords

  • Balanced approach
  • system order reduction
  • dominant states
  • PID controller
  • discrete time linear system