Effect of distributed airgap in the stator for acoustic noise reduction in switched reluctance motors

Yaşa, Yusuf; Tekgun, Didem; Sözer, Yilmaz; Kutz, John; Tylenda, Joshua

doi:10.1109/apec.2017.7930760

Cited by 9 publications

(6 citation statements)

References 20 publications

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“… Summary on the effect of design strategies on noise and vibration in SRM [107–120] Unintentional overlook of data could be possible, though the information provided is to the best of the author's knowledge…”

Section: Noise and Vibrationmentioning

confidence: 99%

“…Acoustic noise mitigation involves reducing the peak radial force [107] and shifting the structural resonance frequency of the stator away from the excitation frequencies [109]. The above can be met through: (i) Design strategies (magnetic design of the stator and rotor) [107–120]. (ii) Commutation strategies [121–141].…”

Section: Noise and Vibrationmentioning

confidence: 99%

“…In order to improve the structural stiffness and shift the stator modal frequencies, taper teeth, square stator yoke, structural spacers (Fig. 16), and distributed air gap had been studied [107–111]. In addition, the skewing of the stator and rotor teeth with multilayers [112–115] (Fig.…”

Section: Noise and Vibrationmentioning

confidence: 99%

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Review based on losses, torque ripple, vibration and noise in switched reluctance motor

Seshadri

Lenin

2019

IET Electric Power Applications

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Some key features to be satisfied by electric motors catering a wide range of applications are high specific power, lower manufacturing cost, rugged construction, and fault‐tolerant operation. Switched reluctance motor is one such motor technology satisfying all the above requirements and is an emerging competitor to the induction and permanent magnet motors in domestic, industrial and electric vehicle applications. The present‐day research on this motor is moving towards improving efficiency at lower speeds, power density, and the torque density. Certain challenges in achieving the same are (a) minimising the losses, (b) mitigation of torque ripple, noise, and vibration, and (c) material advancements. A review based on the estimation and mitigation techniques of each of these over the past three to four decades has been dealt with in this study. The salient features and results in each section provide a clear understanding of how each of these challenges can be overcome in the aspect of design and control strategies.

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Section: Noise and Vibrationmentioning

confidence: 99%

Section: Noise and Vibrationmentioning

confidence: 99%

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Review based on losses, torque ripple, vibration and noise in switched reluctance motor

Seshadri

Lenin

2019

IET Electric Power Applications

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“…On the other hand, their doubly salient structure and highly nonlinear magnetization characteristics make a high torque output ripple inevitable. Due to the high torque ripple and the excitation current`s high-frequency harmonic components, SRMs are having acoustic noise and vibration issues [3,4]. Therefore, parameters that affect the performance measures such as turn-on/off angles (commutation), current regulation, DC bus voltage adjustments should be treated properly [5,6].…”

Section: Introductionmentioning

confidence: 99%

Tork Salınımı Minimizasyonu İçin Modüler Yükseltici-Alçaltıcı Anahtarlamalı Relüktans Makinası Sürücü Sistemi

Tekgün¹

2020

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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In this paper, a modular three-phase buck-boost switched reluctance machine (SRM) drive system is proposed. In this topology, the three-phase SRM drive is composed of three single-phase modules that are connected in parallel where each single-phase inverter module is formed with a bidirectional buck-boost DC/DC converter and a cascaded H-bridge inverter. The DC/DC converter generates the rectified form of the phase voltage and the H-bridge inverter alternates and controls the polarity of the output voltage. This structure allows one to adjust the phase voltages independently, which provides faster excitation and demagnetization for a wide range of operating conditions. Since the voltage is always regulated dynamically, the need for bulky DC-bus capacitors is eliminated; hence, the size and the cost of the drive system are reduced. To validate the superiority of the proposed system and compare it with the traditional one, a set of simulations are done in MATLAB ® /Simulink ® . Not only the torque ripple is reduced, but also a higher torque per ampere ratio is achieved with the proposed system. Bu makalede modüler yapıda olan üç fazlı bir alçaltıcı yükseltici anahtarlamalı relüktans motoru sürücü (ARM) sistemi önerilmiştir. Bu topolojide üç fazlı ARM sürücü üç adet tek-fazlı modülün paralel bağlanmasıyla oluşturulmuş olup, her tek-fazlı sürücü bir çift yönlü çalışan alçaltıcı-yükseltici DA/DA dönüştürücü ve bunun sonrasına bağlanmış bir H-köprü eviriciden oluşmaktadır. DC/DC dönüştürücü faz geriliminin doğrultulmuş formunu oluşturmakta ve H-köprülü evirici de oluşturulan gerilimin yönünü değiştirerek çıkış geriliminin polaritesini kontrol etmektedir. Bu yapı faz gerilimlerinin birbirinden bağımsız olarak ayarlanmasına önayak olarak, hızlı enerjilenmeyi ve demagnetizasyonu mümkün kılmaktadır. Bunun sonucunda komütasyon performansı iyileştirilmiş ve moment salınımı azaltılmıştır. Gerilim dinamik olarak sürekli regüle edildiğinden büyük DC-bara kondansatörlerine olan ihtiyaç ortadan kalkmış ve böylece sürücü boyutu ve maliyeti azaltılmıştır. Önerilen sistemin üstünlüğünü doğrulamak ve bu sitemi geleneksel sistemle karşılaştırmak üzere MATLAB ® /Simulink ® ortamında bir dizi benzetim çalışması yapılmıştır. Önerilen sistem ile sadece moment salınımı azaltılmamış daha yüksek bir amper başına moment oranı da elde edilmiştir.

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“…As it concerns the optimization-based design, several solutions have been proposed to improve vibration, mainly focused on the radial force reduction [4][5][6], the motor natural frequency manipulation [7,8], and the stator damping effect improvement [9].…”

Section: Introductionmentioning

confidence: 99%

A New Control Method for Vibration and Noise Suppression in Switched Reluctance Machines

et al. 2019

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Due to their inherent advantages such as low cost, robustness and wide speed range, switched reluctance machines (SRMs) have attracted great attention in electrical vehicles. However, the vibration and noise problems of SRMs limit their application in the automotive industry because of the negative impact on driver and passengers’ comfort. In this paper, a new control method is proposed to improve the vibratory and acoustic behavior of SRMs. Two additional control blocks —direct force control (DFC) and reference current adapter (RCA)—are introduced to the conventional control method (average torque control (ATC)) of SRM. DFC is adopted to control the radial force in the teeth of the stator, since the dynamic of the radial force has a large impact on the vibratory performance. RCA is proposed to handle the trade-off between the DFC and ATC. It produces an auto-tuning current reference to update the reference current automatically depending on the control requirement. The effectiveness of the proposed control strategy is verified by experimental results under both steady and transient condition. The results show that the proposed method improves the acoustic performance of the SRM and maintains the dynamic response of it, which proves the potential of the proposed control strategy.

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Effect of distributed airgap in the stator for acoustic noise reduction in switched reluctance motors

Cited by 9 publications

References 20 publications

Review based on losses, torque ripple, vibration and noise in switched reluctance motor

Review based on losses, torque ripple, vibration and noise in switched reluctance motor

Tork Salınımı Minimizasyonu İçin Modüler Yükseltici-Alçaltıcı Anahtarlamalı Relüktans Makinası Sürücü Sistemi

A New Control Method for Vibration and Noise Suppression in Switched Reluctance Machines

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