NDLI: Rotor magnet demagnetisation diagnosis in asymmetrical six-phase surface-mounted AC PMSM drives

Content Provider	IET Digital Library
Author	Gritli, Yasser Mengoni, Michele Rizzoli, Gabriele Rossi, Claudio Tani, Angelo Casadei, Domenico
Abstract	Multiphase permanent-magnet synchronous machines (PMSMs) are receiving more and more interest in safety-critical modern industries owing to their higher reliability when compared with conventional three-phase PMSMs. Rotor magnets are critical components, which, in case of fault, directly affect the performance of the PMSMs. Thus, monitoring the rotor magnets status is essential to ensure both high level of efficiency and service continuity. The present study focuses on the investigation of a new approach for the detection of rotor magnet demagnetisation in a vector-controlled asymmetrical six-phase surface-mounted AC PMSM. The main contribution of the proposed technique is the assessment of a rotor demagnetisation fault index derived from the fifth and seventh harmonics of the stator voltage space vector evaluated in the α 5–β 5-plane, and already available in the control system platform. The performance of the proposed approach is evaluated using finite element analysis and numerical simulations, both validated by experimental tests.
Starting Page	1747
Ending Page	1755
Page Count	9
ISSN	17518660
Volume Number	14
e-ISSN	17518679
Issue Number	Issue 10, Oct (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/14/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2019.0222
Journal	IET Electric Power Applications
Publisher	The Institution of Engineering and Technology
Publisher Date	2019-11-13
Access Restriction	Open
Rights License	Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Subject Keyword	Asymmetrical Six-phase Surface-mounted AC PMSM Drive Drive Finite Element Analysis Motor Drive Numerical Simulation Permanent Magnet Machine Permanent-magnet Synchronous Machine Rotor Demagnetisation Fault Index Rotor Magnet Demagnetisation Diagnosis Rotor Magnets Rotors Safety-critical Modern Industries Service Continuity Stator Voltage Space Vector Stators Synchronous Machine Three-phase PMSM Vector-controlled Asymmetrical Six-phase Surface-mounted AC PMSM
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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