The generalisation and decoupling mode of PI-based control

Theoretical approach

Choon Lih Hoo, Sallehuddin Mohamed Haris, Edwin Chin Yau Chung, Nik Abdullah Nik Mohamed

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Proportional integral controllers are well known for its simplicity and ease of implementation in motor control. However, it experiences coupling of tuning gains which results in difficulty in having short rising time without overshoot performance that requires expertise for their coexistence adjustment. Many anti-windup strategies introduced involve switching and manipulating the integral control in various ways under nonlinear state aiming to bring control back into the linear region to prevent performance degradation and system instability. A generalisation function of any PI-based controller which describes the characteristics of a controller is introduced. With thorough understanding of the structure itself, a favourable controller can be designed. Mathematical analysis on this generalisation function suggests the possibility of structuring a decoupling mode control to break the dependency of the tuning gains.

Original languageEnglish
Pages (from-to)1991-1996
Number of pages6
JournalICIC Express Letters
Volume9
Issue number7
Publication statusPublished - 1 Jun 2015

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Controllers
Tuning
Degradation

Keywords

  • Antiwindup
  • Decoupling
  • Generalisation
  • Overshoot
  • PI controller

ASJC Scopus subject areas

  • Computer Science(all)
  • Control and Systems Engineering

Cite this

The generalisation and decoupling mode of PI-based control : Theoretical approach. / Hoo, Choon Lih; Mohamed Haris, Sallehuddin; Chung, Edwin Chin Yau; Mohamed, Nik Abdullah Nik.

In: ICIC Express Letters, Vol. 9, No. 7, 01.06.2015, p. 1991-1996.

Research output: Contribution to journalArticle

Hoo, Choon Lih ; Mohamed Haris, Sallehuddin ; Chung, Edwin Chin Yau ; Mohamed, Nik Abdullah Nik. / The generalisation and decoupling mode of PI-based control : Theoretical approach. In: ICIC Express Letters. 2015 ; Vol. 9, No. 7. pp. 1991-1996.
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