Radial Force Density Analysis of Switched Reluctance Machines: The Source of Acoustic Noise

Callegaro, Alan Dorneles; Liang, Jianbin; Jiang, James Weisheng; Bilgin, Berker; Emadi, Ali

doi:10.1109/tte.2018.2887338

Cited by 43 publications

(15 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The considered SRM is a three-phase 12/8 machine, with a rated torque of 3.69 Nm, a rated speed of 6000 rpm, and a bore radius of 41.8 mm. According to the analysis in [28], the spatial order determines the shape of the excitation and the temporal order represents the forcing excitation frequency. The circumferential vibration modes of the stator only resonate with the same spatial orders of the radial force density wave.…”

Section: B Current Profilingmentioning

confidence: 99%

“…The SRM is prone to high torque ripple, with the switched nature of the machine being the most contributing factor [27]. Moreover, when a phase is excited, large radial forces are generated, which deform the stator core and lead to increased vibrations and acoustic noise [28]. Such characteristics have been a deterrent to the mass adoption of this type of motor [29].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Advanced Control of Switched Reluctance Motors (SRMs): A Review on Current Regulation, Torque Control and Vibration Suppression

Fang

Scalcon

Xiao

et al. 2021

IEEE Open J. Ind. Electron. Soc.

Self Cite

103

View full text Add to dashboard Cite

With the increasing environmental concerns, a paradigm shift towards electric and hybrid electric vehicles is expected. Switched Reluctance Motors (SRMs) have emerged as a viable competitor to other established electrical machines. SRMs are known for their simple construction, robustness, inherent fault tolerant structure and low production and maintenance costs. Moreover, the machine has gained interest due to the absence of permanent magnets or windings in the rotor structure, which significantly reduces production costs when compared to other electric motors. The SRM, however, present some known drawbacks, such as increased torque ripple and acoustic noise production, as well as a highly nonlinear behavior. Through the use of adequate control strategies, however, the main challenges of the machine can be overcome. Thus, this paper presents a state-of-the-art review of the advanced control of SRMs, encompassing current regulation strategies, torque control strategies and vibration suppression techniques. First, two-categories of current controllers are reviewed: model-independent and model-based. Next, indirect and direct torque control methods are explored. Then, three approaches to vibration suppression are discussed, namely active cancellation, current profiling and direct instantaneous force control. Lastly, a summary of each topic is presented and suggestions of future research topics are listed.

show abstract

Section: B Current Profilingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advanced Control of Switched Reluctance Motors (SRMs): A Review on Current Regulation, Torque Control and Vibration Suppression

Fang

Scalcon

Xiao

et al. 2021

IEEE Open J. Ind. Electron. Soc.

Self Cite

103

View full text Add to dashboard Cite

show abstract

“…Cai et al [13] showed that the vibration is largest when the harmonic frequency of electromagnetic force coincides with the modal frequency. Callegaro et al [14] recommended a phase radial force shaping method based on harmonic content analysis, which was experimentally validated with experiments at different speed and load conditions. Kimpara and co-workers [15] analyzed the mechanical coupling path of stator and rotor and its influence on vibration modes.…”

Section: Introductionmentioning

confidence: 99%

A Multi-Physics Modeling-Based Vibration Prediction Method for Switched Reluctance Motors

Liu

Tao

et al. 2019

Applied Sciences

View full text Add to dashboard Cite

Currently, vibration has been one crucial factor hindering the application of switched reluctance motor (SRM). Hence, it is of crucial importance to predict and suppress this undesirable vibration. This paper proposes a multi-physics analysis-based vibration prediction approach for SRM. It consists of three modules: digital controller and drive circuit module, electromagnetic field module, and mechanical module. In the mechanical module, it not only includes the influence of the stator, but also fully considers the influence of rotor, end cover, bearing, and other components of the motor on the system modal. Moreover, the vibration data under different control strategies areis obtained in real time, and data dynamic interaction between the three segments can be also be achieved. By combining the electromagnetic forces and the system structure modal, the vibration of SRM can be predicted. Finally, the effectiveness of the proposed method was verified on a 12/8 poles, 1.5KW SRM drive system test bench. The results demonstrate that the modal simulation method based on static pre-calculation achieves high accuracy, and the vibration spectrums predicted by the proposed method shows good agreement with the experimental results.

show abstract

“…Low cost and low noise SPMSM design Generally, causes of motor noise and vibration are cogging torque, torque ripple, and radial force [10][11][12]. Among them, the radial force in this paper represents the radial force at the stator tooth.…”

mentioning

confidence: 99%

A Study on Stator Design for Electromagnetic Noise Reduction in Washing Machine Motor

Kim¹

2021

TURCOMAT

View full text Add to dashboard Cite

Received:11 november 2020; Accepted: 27 December 2020; Published online: 05 April 2021 Abstract : For low cost, spoke type ferrite magnet motors with small air gap are using to washing machine. At that time, a noise problem occurs, so a design to reduce the noise is required. In the washing machine, set noise increased due to the reduction of air gap of motor at high speed spin mode. Not only the overall noise, but also the harmonics noises are greatly increased at set. As a result of set noise test and noise analysis through finite elements method, a stator tooth shoe shape in which the magnetic flux changes rapidly is cause of noise. Its shape creates many harmonics of load torque. The harmonics component of the load torque increases the overall noise of the set. The harmonics noise of the set has a large correlation with radial force component as well as the torque ripple. Especially, it is found that the harmonics noise of the set is related to harmonics component of load torque and the harmonics component of the radial force at stator tooth. The noise is reduced by applying the new design of stator tooth shoe that can minimize the change in magnetic flux through the noise cause analysis. Through this research, the harmonics noise as well as overall noise are reduced at small airgap motor. Therefore, it is possible to develop cost reduction motor for washing machine.

show abstract

Radial Force Density Analysis of Switched Reluctance Machines: The Source of Acoustic Noise

Cited by 43 publications

References 39 publications

Advanced Control of Switched Reluctance Motors (SRMs): A Review on Current Regulation, Torque Control and Vibration Suppression

Advanced Control of Switched Reluctance Motors (SRMs): A Review on Current Regulation, Torque Control and Vibration Suppression

A Multi-Physics Modeling-Based Vibration Prediction Method for Switched Reluctance Motors

A Study on Stator Design for Electromagnetic Noise Reduction in Washing Machine Motor

Contact Info

Product

Resources

About