Fractional-order system identification and proportional-derivative control of a solid-core magnetic bearing

Jianpeng Zhong; Lichuan Li

doi:10.1016/j.isatra.2014.05.008

Fractional-order system identification and proportional-derivative control of a solid-core magnetic bearing

Jianpeng Zhong^*
, Lichuan Li

^*Corresponding author for this work

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

This paper presents the application of fractional-order system identification (FOSI) and proportional-derivative (PD^μ) control to a solid-core magnetic bearing (MB). A practical strategy for closed-loop incommensurate FOSI along with a modified error criterion is utilized to model the MB system and a corresponding, verification experiment is carried out. Based on the identified model, integer-order (IO) PD and fractional-order (FO) PD^μ controllers are designed and compared with the same specifications. Besides, the relation between the two categories of controllers is discussed by their feasible control zones. Final simulation and experimental results show that the FO PD^μ controller can significantly improve the transient and steady-state performance of the MB system comparing with the IO PD controller.

Original language	English
Pages (from-to)	1232-1242
Number of pages	11
Journal	ISA Transactions
Volume	53
Issue number	4
DOIs	https://doi.org/10.1016/j.isatra.2014.05.008
State	Published - Jul 2014
Externally published	Yes

Keywords

Fractional-order systems
Magnetic bearings
System identification

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10.1016/j.isatra.2014.05.008

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title = "Fractional-order system identification and proportional-derivative control of a solid-core magnetic bearing",

abstract = "This paper presents the application of fractional-order system identification (FOSI) and proportional-derivative (PDμ) control to a solid-core magnetic bearing (MB). A practical strategy for closed-loop incommensurate FOSI along with a modified error criterion is utilized to model the MB system and a corresponding, verification experiment is carried out. Based on the identified model, integer-order (IO) PD and fractional-order (FO) PDμ controllers are designed and compared with the same specifications. Besides, the relation between the two categories of controllers is discussed by their feasible control zones. Final simulation and experimental results show that the FO PDμ controller can significantly improve the transient and steady-state performance of the MB system comparing with the IO PD controller.",

keywords = "Fractional-order systems, Magnetic bearings, System identification",

author = "Jianpeng Zhong and Lichuan Li",

year = "2014",

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TY - JOUR

T1 - Fractional-order system identification and proportional-derivative control of a solid-core magnetic bearing

AU - Zhong, Jianpeng

AU - Li, Lichuan

PY - 2014/7

Y1 - 2014/7

N2 - This paper presents the application of fractional-order system identification (FOSI) and proportional-derivative (PDμ) control to a solid-core magnetic bearing (MB). A practical strategy for closed-loop incommensurate FOSI along with a modified error criterion is utilized to model the MB system and a corresponding, verification experiment is carried out. Based on the identified model, integer-order (IO) PD and fractional-order (FO) PDμ controllers are designed and compared with the same specifications. Besides, the relation between the two categories of controllers is discussed by their feasible control zones. Final simulation and experimental results show that the FO PDμ controller can significantly improve the transient and steady-state performance of the MB system comparing with the IO PD controller.

AB - This paper presents the application of fractional-order system identification (FOSI) and proportional-derivative (PDμ) control to a solid-core magnetic bearing (MB). A practical strategy for closed-loop incommensurate FOSI along with a modified error criterion is utilized to model the MB system and a corresponding, verification experiment is carried out. Based on the identified model, integer-order (IO) PD and fractional-order (FO) PDμ controllers are designed and compared with the same specifications. Besides, the relation between the two categories of controllers is discussed by their feasible control zones. Final simulation and experimental results show that the FO PDμ controller can significantly improve the transient and steady-state performance of the MB system comparing with the IO PD controller.

KW - Fractional-order systems

KW - Magnetic bearings

KW - System identification

UR - https://www.scopus.com/pages/publications/84905037541

U2 - 10.1016/j.isatra.2014.05.008

DO - 10.1016/j.isatra.2014.05.008

M3 - 文章

AN - SCOPUS:84905037541

SN - 0019-0578

VL - 53

SP - 1232

EP - 1242

JO - ISA Transactions

JF - ISA Transactions

IS - 4

ER -

Fractional-order system identification and proportional-derivative control of a solid-core magnetic bearing

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Keywords

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