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Practical Issues

  • Tan Kok Kiong
  • Wang Qing-Guo
  • Hang Chang Chieh
  • Tore J. Hägglund
Part of the Advances in Industrial Control book series (AIC)

Abstract

The PID control designs given in Chapters 2 and 3 are based on simple process models which may appear implicitly or explicitly in the control laws. Nominal controller design also assumes the model is perfect and no significant non-idealities exist such as other extraneous signals, disturbances and physical constraints in the system construction. In practice, such ideal conditions rarely hold and special non-trivial effort must be devoted to ensure effective control performance under these situations. Practical non-idealities in the system may arise from various sources:
  1. 1.

    Non-linear elements in the components of the process, including transducers, actuators and the main process itself.

     
  2. 2.

    Disturbance signals, including high frequency measurement noises and low frequency signal drift due to load disturbances.

     

Keywords

Derivative Part Gain Schedule Load Disturbance Switching Instant Secondary Side 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London 1999

Authors and Affiliations

  • Tan Kok Kiong
    • 1
  • Wang Qing-Guo
    • 1
  • Hang Chang Chieh
    • 1
  • Tore J. Hägglund
    • 2
  1. 1.Department of Electrical EngineeringNational University of SingaporeSingapore
  2. 2.Department of Automatic ControlLund UniversityLundSweden

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