Bingi, K. and Ibrahim, R. and Karsiti, M.N. and Hassam, S.M. and Harindran, V.R. (2019) Frequency Response Based Curve Fitting Approximation of Fractional-Order PID Controllers. International Journal of Applied Mathematics and Computer Science, 29 (2). pp. 311-326. ISSN 1641876X
Full text not available from this repository.Abstract
Fractional-order PID (FOPID) controllers have been used extensively in many control applications to achieve robust control performance. To implement these controllers, curve fitting approximation techniques are widely employed to obtain integer-order approximation of FOPID. The most popular and widely used approximation techniques include the Oustaloup, Matsuda and Cheraff approaches. However, these methods are unable to achieve the best approximation due to the limitation in the desired frequency range. Thus, this paper proposes a simple curve fitting based integer-order approximation method for a fractional-order integrator/differentiator using frequency response. The advantage of this technique is that it is simple and can fit the entire desired frequency range. Simulation results in the frequency domain show that the proposed approach produces better parameter approximation for the desired frequency range compared with the Oustaloup, refined Oustaloup and Matsuda techniques. Furthermore, time domain and stability analyses also validate the frequency domain results. © 2019 Kishore Bingi et al., published by Sciendo.
Item Type: | Article |
---|---|
Additional Information: | cited By 34 |
Uncontrolled Keywords: | Controllers; Curve fitting; Electric control equipment; Frequency response; Proportional control systems; Robust control; Three term control systems, Approximation methods; Approximation techniques; Control applications; Fractional-order integrator; Fractional-order PID controllers; Integer order; Matsuda approximation; Oustaloup approximation, Time domain analysis |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 10 Nov 2023 03:26 |
Last Modified: | 10 Nov 2023 03:26 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/11549 |