Calculation of the Acoustic Noise Spectrum of SRM Using Modal Superposition

Fiedler, Jens; Kasper, Knut A.; Doncker, Rik W. De

doi:10.1109/tie.2010.2046573

Cited by 91 publications

(33 citation statements)

References 20 publications

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“…14. (a) Order sections by a torque level of 6% (b) Order sections by a torque level of 49% In fact, resonances of the stator amplify the excitation forces. The dominant resonance in this application is approximately 6300Hz with a corresponding square mode shape [4]. This is due to the fact that four stator poles are symmetrically loaded in a 12/8 SR motor.…”

Section: Signature Time and Frequency Analysismentioning

confidence: 93%

NVH analysis of a 3 phase 12/8 SR motor drive for HEV applications

Sarrazin

Gillijns

Anthonis

et al. 2013

2013 World Electric Vehicle Symposium and Exhibition (EVS27)

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In this study different noise and vibration measurements on a multi-phase 12/8 switched reluctance (SR) motor for automotive applications are carried out on a test rig and analysed with vibro-acoustic techniques.When evaluating the behaviour of rotating machinery for HEV applications, it is necessary to perform a vibro-acoustic analysis. The reason for this is that these specific noise and vibration contribute significantly to the perceived overall sound quality in the passenger compartment and outside the vehicle. Vibrations or high frequency tonal acoustic noise could be annoying for the passengers or could even cause long term damage. Therefore, the noise and vibration must be deliberately optimized. In case of a SR motor, the radial magnetic force between stator and rotor is a main excitation source to create large deformations of the stator housing, causing serious vibrations and acoustic noise. Measurements and results of simulations in different load conditions are compared. In addition, the dominant vibration modes are verified by modal analysis and operational deflection shapes. The unpleasant tonal acoustic radiation of this electric motor is objectively quantified by noise metrics. Finally, the relationship between the current profiles, radial magnetic forces, and mechanical and acoustic vibrations is investigated to obtain a better insight into the root cause of the vibro-acoustic behaviour of the motor.

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Section: Signature Time and Frequency Analysismentioning

confidence: 93%

NVH analysis of a 3 phase 12/8 SR motor drive for HEV applications

Sarrazin

Gillijns

Anthonis

et al. 2013

2013 World Electric Vehicle Symposium and Exhibition (EVS27)

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show abstract

“…Analog to the spatial force decomposition, the timedependent deflection of the SRM can be described by a superposition of modes [69] (Fig. 8(b)).…”

Section: Acoustic Excitationmentioning

confidence: 99%

Technology, Research and Applications of Switched Reluctance Drives

et al. 2017

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Abstract-Electrical drives are one of the major consumers of electrical energy and their penetration in the market is still growing. Hence, for many drive applications efficient, reliable and cost effective solutions have to be found. Switched reluctance drives (SRD) offer a potential solution when focus is mainly on cost and robustness. However, to benefit from the unique advantages of this machine type a deep understanding of its strongly non-linear behavior is required. After discussing some major differences to classic rotating field machines, this paper presents a broad overview of the state of the art of SRD taking into consideration all aspects relevant to machine modeling, design and control development process. Finally, applications on the market utilizing SRDs and the focus of current research is presented. After reading this paper the reader will be able to assess if this modern drive technology could be advantagous in a given application.

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“…Over the past decades, various studies have been conducted to address the vibration and acoustic noise in SRMs. [1] suggests that the vibration and acoustic noise is mainly caused by the radial forces in SRMs; [2] and [3] demonstrate an active cancellation method to reduce the vibration in SR drives by introducing a two-step switching technique; [4] and [5] introduce the modal analysis of the stator frame in SRMs and the interaction between the excitation and natural frequencies of the mechanical system. These studies have introduced insightful findings related to the vibration and acoustic noise in SRMs.…”

Section: Introductionmentioning

confidence: 99%

Efficient multiphysics modelling of vibration and acoustic noise in switched reluctance motor drives

Lin

Wang

Fahimi

2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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Acoustic noise has been reported as a major problem in Switched Reluctance Machines (SRMs) for noise sensitive applications. This issue has drawn significant attention over the past decades. In this paper, a numerical method used to predict vibration with high computational efficiency is introduced. The accuracy of this method is demonstrated by the comparison of the calculated results and the multiphysics Finite Element Analysis (FEA) simulation. Finally, based on this method, a fast process for the optimal design of the stator frame is proposed to reduce the vibration and acoustic noise in SRMs.Index Terms-switched reluctance machine, vibration, acoustic noise.

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Calculation of the Acoustic Noise Spectrum of SRM Using Modal Superposition

Cited by 91 publications

References 20 publications

NVH analysis of a 3 phase 12/8 SR motor drive for HEV applications

NVH analysis of a 3 phase 12/8 SR motor drive for HEV applications

Technology, Research and Applications of Switched Reluctance Drives

Efficient multiphysics modelling of vibration and acoustic noise in switched reluctance motor drives

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