Current sensor fault-tolerant control based on modified Luenberger observers for safety-critical vector-controlled induction motor drives

• Autorzy: Adamczyk Michal , Orłowska-Kowalska Teresa

Identyfikatory

DOI

10.24425/bpasts.2024.151041

• Języki publikacji: EN

Abstrakty

EN

Vector-controlled drives require stator current information for use in current feedback and/or state variable estimators. That is why the detection and compensation of possible current sensor (CS) damage is so important. This article focuses on CS fault-tolerant control (FTC) in induction motor (IM) drive systems. In contrast to solutions known from the literature, two modified Luenberger observers (MLO) were applied, allowing for high-quality estimation of currents used in the detector and fault compensator. In a simple implementation of a detection algorithm based on residuals, an adaptive threshold coefficient was employed, enabling effective detection of various types of faults, regardless of whether the second CS was faulty or intact. The presented solution was evaluated during both motor and regenerative operation, with faults occurring in transient states, unlike solutions known in the literature.

Słowa kluczowe

EN

induction motor drives; fault-tolerant control; fault detection; fault compensation; current sensor fault; modified Luenberger observer

PL

napędy silników indukcyjnych; sterowanie odporne na błędy; wykrywanie błędów; kompensacja błędów; zmodyfikowany obserwator Luenbergera; błąd czujnika prądu

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2024
• Tom: Vol. 72, nr 5
• Strony: art. no. e151041
• Opis fizyczny: Bibliogr. 44 poz., rys., tab.

Twórcy

autor

Adamczyk Michal

• Wroclaw University of Science and Technology, Department of Electrical Machines, Drives and Measurements, Wrocław, Poland

• https://orcid.org/0000-0002-8716-8919

autor

Orłowska-Kowalska Teresa

• Wroclaw University of Science and Technology, Department of Electrical Machines, Drives and Measurements, Wrocław, Poland

• https://orcid.org/0000-0002-4592-5336

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