Detail publikace

Comparative Study of Op-Amp-based Integrators Suitable for Fractional-Order Controller Design

HERENCSÁR, N. KARTCI, A. YILDIZ, H. A. ŠOTNER, R. DVOŘÁK, J. KUBÁNEK, D. JEŘÁBEK, J. KOTON, J.

Originální název

Comparative Study of Op-Amp-based Integrators Suitable for Fractional-Order Controller Design

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

In this paper, a fractional-order capacitor (FOC) of an order λ = 0.89 (i.e. constant phase angle –80.1 degree) was emulated via Valsa RC network with five branches. The network component values were optimized using modified least squares quadratic method in a wide frequency range of 100 mHz–1 kHz (i.e. 4 decades) and maximum relative phase error 0.78% was obtained. The design specification corresponds to a speed control system of an armature controlled DC motor, which is often used in control theory. Overall performance evaluation shows the product of evaluated key features (e.g. phase angle deviation and absolute values of relative phase, impedance, and pseudocapacitance errors) for the optimized FOC is 13.3% less than the one obtained via Valsa approximation. The behavior of Op-Amp-based non-inverting configurations of analogue fractional-order integral operator s– employing the optimized FOC, where 0 < λ< 1, is compared. The behavior of studied integrator circuits is confirmed by SPICE simulations using the readily available Texas Instruments TL072 low-noise Op-Amp macromodel, which is commonly used in electronics.

Klíčová slova

DC motor, fractional calculus, fractional-order capacitor, fractional-order controller, fractional-order integrator, Op-Amp, Valsa RC network

Autoři

HERENCSÁR, N.; KARTCI, A.; YILDIZ, H. A.; ŠOTNER, R.; DVOŘÁK, J.; KUBÁNEK, D.; JEŘÁBEK, J.; KOTON, J.

Vydáno

1. 7. 2019

Nakladatel

IEEE

Místo

Budapest, Hungary

ISBN

978-1-7281-1864-2

Kniha

Proceedings of the 2019 42nd International Conference on Telecommunications and Signal Processing (TSP), Budapest, Hungary

Strany od

740

Strany do

743

Strany počet

4

URL

https://ieeexplore.ieee.org/document/8768843

Plný text v Digitální knihovně

http://hdl.handle.net/11012/180513

BibTex

@inproceedings{BUT157434,
  author="Norbert {Herencsár} and Aslihan {Kartci} and Hacer A. {Yildiz} and Roman {Šotner} and Jan {Dvořák} and David {Kubánek} and Jan {Jeřábek} and Jaroslav {Koton}",
  title="Comparative Study of Op-Amp-based Integrators Suitable for Fractional-Order Controller Design",
  booktitle="Proceedings of the 2019 42nd International Conference on Telecommunications and Signal Processing (TSP), Budapest, Hungary",
  year="2019",
  pages="740--743",
  publisher="IEEE",
  address="Budapest, Hungary",
  doi="10.1109/TSP.2019.8768843",
  isbn="978-1-7281-1864-2",
  url="https://ieeexplore.ieee.org/document/8768843"
}