Novel Tuning Expressions for Fractional Order ([PD]^beta and [PI]^alpha) Controllers Using a Generalized Plant Structure
- Authors
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Ameya Anil Kesarkar
Indian Institute of Space Science and Technology (IIST), Department of Space, Govt of India, Thiruvananthapuram, India.
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Selvaganesan N
Indian Institute of Space Science and Technology (IIST), Department of Space, Govt of India, Thiruvananthapuram, India.
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- Abstract
- The available tuning expressions in the literature for three-parameter-fractional-controllers such as [PD]^beta and [PI]^alpha are specific to the given class of plant transfer function. If one intends to design such controllers for a new plant, then the tuning expressions meeting required specifications need to be derived accordingly. This is a tedious and work intensive process. To overcome such difficulty, this paper presents novel tuning expressions of [PD]^beta and [PI]^alpha controllers which are readily usable for any class of integer or fractional order LTI plant. Such unification is accomplished by defining a generalized plant structure. The usefulness of these expressions is demonstrated by considering several integer and fractional order plant examples. The results confirm correctness of proposed framework.
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- Published
- 2015-03-28
- Issue
- Vol. 17 No. 1 (2015)
- Section
- Articles