A novel four layer switch reluctance motor with high torque and ripple reduction

Hajihosseinlu, A.; Jahanmahin, M.; Afjei, E.; Tajik, S.

doi:10.1109/pedstc.2012.6183299

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…The two-stack SRM from publication [36] achieved a torque ripple reduction. Four-layer SRMs have been introduced in [37][38][39]; they have a reduced torque ripple. A two-layer switched reluctance motor/generator has been introduced by [40].…”

Section: Multi-stack and Multi-layer Structure Conventional Srmmentioning

confidence: 99%

Switched Reluctance Motors and Drive Systems for Electric Vehicle Powertrains: State of the Art Analysis and Future Trends

et al. 2021

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This paper presents a detailed literature review on switched reluctance motor (SRM) and drive systems in electric vehicle (EV) powertrains. SRMs have received increasing attention for EV applications owing to their reliable structure, fault tolerance ability and magnet free design. The main drawbacks of the SRM are torque ripple, low power density, low power factor and small extended speed range. Recent research shows that multi-stack conventional switched reluctance motors (MSCSRM) and multi-stack switched reluctance motors with a segmental rotor (MSSRM-SR) are promising alternative solutions to reduce torque ripples, increase torque density and increase power factor. Different winding configurations such as single-layer concentrated winding (SLC), single layer mutually coupled winding (SLMC), double layer concentrated winding (DLC), double layer mutually coupled winding (DLMC) and fully-pitched winding (FP) are introduced in the literature in recent years to increase average torque and to decrease torque ripples. This research analyzes winding methods and structure of the SRMs, including conventional and segmental rotors. They have been compared and assessed in detail evaluation of torque ripple reduction, torque/power density increase, noise/vibration characteristics and mechanical structure. In addition, various drive systems are fully addressed for the SRMs, including conventional drives, soft-switching drives, drives with standard inverters and drives with an integrated battery charger. In this paper, the SRM control methods are also reviewed and classified. These control methods include strategies of torque ripple reduction, fault-diagnosis, fault-tolerance techniques and sensorless control. The key contributions of this paper provide a useful basis for detailed analysis of modeling and electromechanical design, drive systems, and control techniques of the SRMs for EV applications.

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Section: Multi-stack and Multi-layer Structure Conventional Srmmentioning

confidence: 99%

Switched Reluctance Motors and Drive Systems for Electric Vehicle Powertrains: State of the Art Analysis and Future Trends

et al. 2021

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“…The linear speed of the wheel (measured at its outer periphery) and its angular velocity are as shown in (2).…”

Section: Mathematical Model Developmentmentioning

confidence: 99%

“…Use of regenerative braking enables the kinetic energy in the moving vehicle to be recuperated in the battery during braking periods, thereby increasing the efficiency of the drivetrain [1]. Different electric motors with high negative and positive torque characteristics have been investigated including switched reluctance and permanent-magnet synchronous motors [2], [3]. Drive-train layouts including one, two or four independently controlled motors have been considered.…”

Section: Introductionmentioning

confidence: 99%

Electronic differential design for a vehicle with four independently controlled in-wheel motors

Hajihosseinlu

Filizadeh

Bistyak

et al. 2014

2014 IEEE International Electric Vehicle Conference (IEVC)

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In this paper a simple topology for electronic differential in an electric vehicle with four independent In-wheel motors is proposed. Based on inputs of the steering wheel angle and the acceleration pedal position, this method uses real-time power management and produces different torque references for the four wheels and, consequently the angular velocity of each wheel will be adjusted. Using slip-ratio calculations the proposed algorithm extracts maximum output torque by optimizing the operatingpoint slip ratio. The paper also highlights an application of deployed in-wheel motors in yaw stability and suggests a simple yaw control strategy. The proposed electronic differential method is first investigated using MATLAB and is then implemented on a real-time digital simulator, which is then connected to a small motor to verify its performance in a hardware-in-loop scheme.

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A novel four layer switch reluctance motor with high torque and ripple reduction

Cited by 2 publications

References 11 publications

Switched Reluctance Motors and Drive Systems for Electric Vehicle Powertrains: State of the Art Analysis and Future Trends

Switched Reluctance Motors and Drive Systems for Electric Vehicle Powertrains: State of the Art Analysis and Future Trends

Electronic differential design for a vehicle with four independently controlled in-wheel motors

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