Design and implementation of a speed adaptive flux observer for the induction motor using Sylvester criterion

Research output: Contribution to journalArticle

Abstract

The paper presents the design and implementation of a flux and speed observer for the induction motor drive. The method employs an observer with linear feedback that yields the motor fluxes and also estimates the speed using an adaptive law. The convergence conditions are formulated based on Lyapunov’s nonlinear stability theory. The gains of the observer are designed using Sylvester criterion. The method proposed is reasonably simple and yields a series of inequalities that provide insight into the design choices and stability margins of the observer. The paper shows that the observer is not globally stable – however, with proper design of the adaptation gains, it can be made locally stable. The observer with the corresponding adaptive speed estimate does not perform during low speed regeneration – the speed estimate diverges; to solve this issue, the paper shows a modified adaptation law that yields a stable speed estimate.

Original languageEnglish (US)
Pages (from-to)367-391
Number of pages25
JournalInternational Journal of Power Electronics
Volume10
Issue number4
DOIs
StatePublished - Jan 1 2019

Fingerprint

Induction motors
Fluxes
Feedback

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

@article{7a9bac01ff3a41ac8e19bcae2a1e7bf7,
title = "Design and implementation of a speed adaptive flux observer for the induction motor using Sylvester criterion",
abstract = "The paper presents the design and implementation of a flux and speed observer for the induction motor drive. The method employs an observer with linear feedback that yields the motor fluxes and also estimates the speed using an adaptive law. The convergence conditions are formulated based on Lyapunov’s nonlinear stability theory. The gains of the observer are designed using Sylvester criterion. The method proposed is reasonably simple and yields a series of inequalities that provide insight into the design choices and stability margins of the observer. The paper shows that the observer is not globally stable – however, with proper design of the adaptation gains, it can be made locally stable. The observer with the corresponding adaptive speed estimate does not perform during low speed regeneration – the speed estimate diverges; to solve this issue, the paper shows a modified adaptation law that yields a stable speed estimate.",
author = "Mihai Comanescu",
year = "2019",
month = "1",
day = "1",
doi = "10.1504/IJPELEC.2019.102506",
language = "English (US)",
volume = "10",
pages = "367--391",
journal = "International Journal of Power Electronics",
issn = "1756-638X",
publisher = "Inderscience Publishers",
number = "4",

}

TY - JOUR

T1 - Design and implementation of a speed adaptive flux observer for the induction motor using Sylvester criterion

AU - Comanescu, Mihai

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The paper presents the design and implementation of a flux and speed observer for the induction motor drive. The method employs an observer with linear feedback that yields the motor fluxes and also estimates the speed using an adaptive law. The convergence conditions are formulated based on Lyapunov’s nonlinear stability theory. The gains of the observer are designed using Sylvester criterion. The method proposed is reasonably simple and yields a series of inequalities that provide insight into the design choices and stability margins of the observer. The paper shows that the observer is not globally stable – however, with proper design of the adaptation gains, it can be made locally stable. The observer with the corresponding adaptive speed estimate does not perform during low speed regeneration – the speed estimate diverges; to solve this issue, the paper shows a modified adaptation law that yields a stable speed estimate.

AB - The paper presents the design and implementation of a flux and speed observer for the induction motor drive. The method employs an observer with linear feedback that yields the motor fluxes and also estimates the speed using an adaptive law. The convergence conditions are formulated based on Lyapunov’s nonlinear stability theory. The gains of the observer are designed using Sylvester criterion. The method proposed is reasonably simple and yields a series of inequalities that provide insight into the design choices and stability margins of the observer. The paper shows that the observer is not globally stable – however, with proper design of the adaptation gains, it can be made locally stable. The observer with the corresponding adaptive speed estimate does not perform during low speed regeneration – the speed estimate diverges; to solve this issue, the paper shows a modified adaptation law that yields a stable speed estimate.

UR - http://www.scopus.com/inward/record.url?scp=85073375705&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85073375705&partnerID=8YFLogxK

U2 - 10.1504/IJPELEC.2019.102506

DO - 10.1504/IJPELEC.2019.102506

M3 - Article

AN - SCOPUS:85073375705

VL - 10

SP - 367

EP - 391

JO - International Journal of Power Electronics

JF - International Journal of Power Electronics

SN - 1756-638X

IS - 4

ER -