Modeling of Multiphase Induction Motors Under Outer Raceway Bearing Fault

Kaikaa, Mohamed Yazid; Kecita, Zohra Yasmine

doi:10.1109/ceit.2018.8751827

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…On the other hand, there are numerous faults that do not solely affect some of the stator phases, but all of them to similar extent. This occurs, e.g., in case of shortage [138,466,467], excess [131,132] or sensor failure [58] of dc-link voltage v dc (for single-dc-link drive), magnet demagnetization [75], as well as mechanical (e.g., eccentricity or damaged bearings/bars) [79,81,82,84,85], speed/position-sensor [182,199], or machine cooling-system failures (increasing temperature) [60,70,71,468], among others. The phase redundancy of multiphase machines, in principle, does not seem to offer inherent tolerance against these kinds of faults.…”

Section: Main Fault Types and Literature Classification According To ...mentioning

confidence: 99%

“…In turn, this failure leads to an increase in machine problems, such as eccentricity and vibration [462]. In fact, vibration monitoring is one of the most common approaches for the detection of bearing faults [81,462]. Nonetheless, it is preferable to avoid the use of additional transducers and instead rely on the current measurements, which nowadays are typically found in available ac drives.…”

Section: Mechanical Faultsmentioning

confidence: 99%

“…Bearings consist of an inner and an outer ring, with balls or rollers between them [462]. The possibility of monitoring the stator phase-current harmonics for detection of damage in the outer ring is analyzed in [81] for an asymmetrical six-phase IM. Namely, it is shown that side-band harmonics around the fundamental and rotor-slot harmonics can be employed for this purpose.…”

Section: Mechanical Faultsmentioning

confidence: 99%

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A Comprehensive Survey on Fault Tolerance in Multiphase AC Drives, Part 1: General Overview Considering Multiple Fault Types

et al. 2022

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Multiphase drives offer enhanced fault-tolerant capabilities compared with conventional three-phase ones. Their phase redundancy makes them able to continue running in the event of faults (e.g., open/short-circuits) in certain phases. Moreover, their greater number of degrees of freedom permits improving diagnosis and performance, not only under faults affecting individual phases, but also under those affecting the machine/drive as a whole. That is the case of failures in the dc link, resolver/encoder, control unit, cooling system, etc. Accordingly, multiphase drives are becoming remarkable contenders for applications where high reliability is required, such as electric vehicles and standalone/off-shore generation. Actually, the literature on the subject has grown exponentially in recent years. Various review papers have been published, but none of them currently cover the state-of-the-art in a comprehensive and up-to-date fashion. This two-part paper presents an overview concerning fault tolerance in multiphase drives. Hundreds of citations are classified and critically discussed. Although the emphasis is put on fault tolerance, fault detection/diagnosis is also considered to some extent, because of its importance in fault-tolerant drives. The most important recent advances, emerging trends and open challenges are also identified. Part 1 provides a comprehensive survey considering numerous kinds of faults, whereas Part 2 is focused on phase/switch open-circuit failures.

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