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Fractal Fract
Volume 5
Issue 2
10.3390/fractalfract5020046
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Article

Design of Fractional-Order Lead Compensator for a Car Suspension System Based on Curve-Fitting Approximation

by
Evisa Memlikai
1,
Stavroula Kapoulea
1,
Costas Psychalinos
1,*,
Jerzy Baranowski
2,
Waldemar Bauer
2,
Andrzej Tutaj
2 and
Paweł Piątek
2
1
Electronics Laboratory, Department of Physics, University of Patras, GR-26504 Rio Patras, Greece
2
Department of Automatic Control and Robotics, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Kraków, Poland
*
Author to whom correspondence should be addressed.
Fractal Fract. 2021, 5(2), 46; https://doi.org/10.3390/fractalfract5020046
Submission received: 12 March 2021 / Revised: 13 April 2021 / Accepted: 12 May 2021 / Published: 15 May 2021
(This article belongs to the Special Issue Fractional Calculus in Control and Modelling)
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Abstract

An alternative procedure for the implementation of fractional-order compensators is presented in this work. The employment of a curve-fitting-based approximation technique for the approximation of the compensator transfer function offers improved accuracy compared to the Oustaloup and Padé methods. As a design example, a lead compensator intended for usage in car suspension systems is realized. The open-loop and closed-loop behavior of the system is evaluated by post-layout simulation results obtained using the Cadence IC design suite and the Metal Oxide Semiconductor (MOS) transistor models provided by the Austria Mikro Systeme 0.35 μm Complementary Metal Oxide Semiconductor (CMOS) process. The derived results verify the efficient performance of the introduced implementation.
Keywords: fractional-order controllers; motion control systems; Oustaloup approximation; Padé approximation; CMOS analog integrated circuits; operational transconductance amplifiers fractional-order controllers; motion control systems; Oustaloup approximation; Padé approximation; CMOS analog integrated circuits; operational transconductance amplifiers

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MDPI and ACS Style

Memlikai, E.; Kapoulea, S.; Psychalinos, C.; Baranowski, J.; Bauer, W.; Tutaj, A.; Piątek, P. Design of Fractional-Order Lead Compensator for a Car Suspension System Based on Curve-Fitting Approximation. Fractal Fract. 2021, 5, 46. https://doi.org/10.3390/fractalfract5020046

AMA Style

Memlikai E, Kapoulea S, Psychalinos C, Baranowski J, Bauer W, Tutaj A, Piątek P. Design of Fractional-Order Lead Compensator for a Car Suspension System Based on Curve-Fitting Approximation. Fractal and Fractional. 2021; 5(2):46. https://doi.org/10.3390/fractalfract5020046

Chicago/Turabian Style

Memlikai, Evisa, Stavroula Kapoulea, Costas Psychalinos, Jerzy Baranowski, Waldemar Bauer, Andrzej Tutaj, and Paweł Piątek. 2021. "Design of Fractional-Order Lead Compensator for a Car Suspension System Based on Curve-Fitting Approximation" Fractal and Fractional 5, no. 2: 46. https://doi.org/10.3390/fractalfract5020046

APA Style

Memlikai, E., Kapoulea, S., Psychalinos, C., Baranowski, J., Bauer, W., Tutaj, A., & Piątek, P. (2021). Design of Fractional-Order Lead Compensator for a Car Suspension System Based on Curve-Fitting Approximation. Fractal and Fractional, 5(2), 46. https://doi.org/10.3390/fractalfract5020046

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