Analysis of a three phase induction motor with outer rotor for multi-speed applications

Vîrlan, Bogdan; Simion, Alecsandru; Livadaru, Leonard; Benelghali, Seifeddine; Outbib, Rachid

doi:10.1109/icelmach.2012.6349900

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…This enables the use of a startup strategy that entails a brief period of high current, resulting in lower power consumption. However, toroidal windings have some drawbacks: the winding process is complex and labor-intensive, which can lead to increased manufacturing costs and longer lead times and high leakage inductance, which can result in increased power loss and reduced motor performance [44].…”

Section: Winding Statormentioning

confidence: 99%

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

et al. 2023

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Recently, there has been significant attention given to the electrification of transportation due to concerns about fossil fuel depletion and environmental pollution. Conventional drive systems typically include a clutch, reduction gear, and mechanical differential, which results in power loss, noise, vibration, and additional maintenance. However, in-wheel motor drive technology eliminates the need for these components, providing benefits such as higher system efficiency, improved wheel control, and increased passenger comfort. This article offers a comprehensive review of the technology and development of in-wheel motor drives. It begins with an overview of in-wheel motor drives in electric vehicles, followed by an exploration of the types of electric motors suitable for in-wheel motor drives. The paper then presents an industrial state of the art of in-wheel motors, comparing them with conventional motor drives, and reviews the implemented power electronics, control system, and cooling systems. Finally, the paper concludes by providing an outlook on the challenges and future trends of in-wheel drive systems.

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Section: Winding Statormentioning

confidence: 99%

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

et al. 2023

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“…To be able to mitigate or eliminate some MMF harmonics induced in the rotor windings, a double-fed (wound-rotor) IM with multi-layer FSCWs is introduced in Reference [20]. In order to improve the performance of the IMs with FSCWs, some other different methods, such as single-and multi-phase FSCWs [19,21], outer-rotor topology with modular stator windings [22], outer rotor IM with multi-layer FSCWs wound around two and three layers of stator slots [10], multi-layer toroidal windings [8,11], stator cage windings [17], combination of different numbers of turns per one coil side and combined star-delta phase connection [16], and two sets of FSCWs with a dual slot-layer stator structure [23] have been investigated in the last decade. However, although the MMF harmonics are relatively reduced using different above-mentioned methods, new drawbacks, such as low torque-per-flux due to the relatively low-winding factor and increased total axial length and consequently increased copper loss due to the requirement of the additional number of turns have been arisen.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Advanced Nonoverlapping Winding Induction Machines for EV/HEV Applications

2021

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This paper presents a detailed analysis and design guidelines for advanced nonoverlapping winding induction machines (AIMs) with coil-pitch of two slot-pitches by considering some vital empirical rules and flux-weakening characteristics. The aim of the study is to develop a type of new winding and stator topology for induction machines (IMs) that will lead to a decrease in total axial length without sacrificing torque, power, and efficiency. The key performance characteristics of the improved AIMs are investigated by 2D time-stepping finite element analysis (FEA) and compared with those of IMs having fractional and conventional overlapping and nonoverlapping windings. Compared with the conventional overlapping winding counterpart of the AIM, a ~25% shorter axial length without sacrificing torque, output power, and efficiency is achieved. In addition, the influences of major design parameters, such as stator slot, rotor slot and pole numbers, stack length, number of turns per phase, machine geometric parameters, etc., on the flux-weakening characteristics are investigated. It has been concluded that the major design parameters have a considerable effect on the electromagnetic performance. However, among those parameters, the influences of pole number and stack length together with the number of turns on flux-weakening characteristics are significant.

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Multiphase machines with individual slot activation

Canders

Mosebach

2018

Electr Eng

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Analysis of a three phase induction motor with outer rotor for multi-speed applications

Cited by 6 publications

References 9 publications

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends

Design and Analysis of Advanced Nonoverlapping Winding Induction Machines for EV/HEV Applications

Multiphase machines with individual slot activation

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