Method for radial vibration modelling in switched reluctance motor

Guo, Xiaoqiang; Zhong, Rui; Zhao, Longpan; Yin, Jianwei; Sun, Weifeng

doi:10.1049/iet-epa.2016.0177

Cited by 20 publications

(11 citation statements)

References 26 publications

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“…The harmonics of the radial force on the stator core mainly cause the vibration and the acoustic noise in SRMs [19][20][21]. Analysing the dominant harmonics of the radial force is important for the acoustic noise analysis and noise reduction.…”

Section: Dominant Harmonics and Vibration Mode At 2000 Rpmmentioning

confidence: 99%

Prediction of acoustic noise and vibration of a 24/16 traction switched reluctance machine

Liang

Jiang

Callegaro

et al. 2020

IET Electrical Systems in Transportation

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This study presents a numerical modelling approach for the prediction of vibration and acoustic noise for a 24/16 traction switched reluctance machine (SRM). The numerical modelling includes the simulation of electromagnetic force in JMAG, the calculation of natural frequencies and the simulation of vibration and acoustic noise in ACTRAN. Considerations in the modelling of geometries, meshing and contacts of the 24/16 SRM are discussed to ensure the accuracy of the numerical simulation. Two-dimensional fast Fourier transform (FFT) is applied to the radial nodal force at the stator pole tip to analyse the dominant harmonics. FFT is also applied to the simulated surface displacement of the housing and the sound pressure at 2000 rpm to analyse their dominant frequency components. The dominant harmonics for the vibration and acoustic noise at 2000 rpm are confirmed. The numerical modelling method presented in this study can also be applied to the other SRMs and electric machines to predict the vibration behaviour and the radiated acoustic noise.

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Section: Dominant Harmonics and Vibration Mode At 2000 Rpmmentioning

confidence: 99%

Prediction of acoustic noise and vibration of a 24/16 traction switched reluctance machine

Liang

Jiang

Callegaro

et al. 2020

IET Electrical Systems in Transportation

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“…一般 BSG 系统选用感应电机 [5] 和永磁电机 [6][7] ，然而，感应电机在低速时很难获得高转矩，永磁电机采用的永磁材料成本较高且在高温下容易出现退磁现象，因此越来越多的学者开始着眼于选用开关磁阻电机(SRM)。与感应电机和永磁电机相比， SRM 具有成本低、坚固性好、容错性能高、能适用于高速运行和恶劣环境等优点 [8][9][10][11][12] 。基于上述优点， SRM 在电动汽车电机驱动领域有着良好的发展前景，同时也是各国研究与实践的热门课题之一 [13] 。 SRM 的非线性和铁心磁通密度的高饱和性给 SRM 的优化设计带来了很大的困难。宋受俊等 [14] 提出了一种改进的遗传算法对电机关键几何尺寸及控制参数进行了优化，提高了电机的效率并降低了转矩脉动。孙鹏飞 [15] 指出电机驱动系统可靠性能的优劣决定了电动汽车安全性能的优劣，而高可靠性是指电机系统在发生故障后仍然有一定满足动力输出的能力。SRM 驱动系统相对于传统电机驱动系统具有更好的容错性，而且由双三相逆变器驱动的 SRM 系统的容错性将进一步提高 [16] 。然而普通 SRM 有转矩脉动过高、噪声过大以及高速运行时效率低的缺点，因此导致普通 SRM 在电动车电机驱动领域难以推广应用 [17][18] 。陈小元等 [18] 提出了整距式分块转子 SRM 设计中的关键技术，包括电机的主要公式的推导、定转子极弧系数的选择和电机绕组参数的计算。TORKAMAN 等 [19] 提出了应用于容错式电机的两种新转子结构，一种为阶梯转子式…”

Section: 多的重视。unclassified

Optimization and Experimental Analysis of a Segmented Rotor SRM of BSG for HEVs

Sun¹,

Zhou²,

Chen³

et al. 2019

Journal of Mechanical Engineering

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：To overcome the inherent defects of conventional switched reluctance motor (SRM), a new type of fault-tolerant segmented rotor SRM for the belt-driven starter generator (BSG) of HEVs is proposed, and then its electromagnetic characteristics are analyzed. Firstly, in order to improve the output torque of the new fault-tolerant segmented rotor SRM, the key structural parameters affecting the motor output torque are optimized, and the static and dynamic characteristics of the optimized motor are analyzed. Secondly, to study the fault-tolerant performance of the proposed motor, the characteristics of mutual inductance and fault tolerance features in case of a phase failure of the conventional SRM and fault-tolerant segmented rotor SRM are compared. Finally, an experimental prototype is designed and fabricated to verify the static characteristics. In addition, experimental studies on the prototype motor were carried out when it operated under the load operation. Both the simulated and experimental results reveal that the output torque of optimized fault-tolerant segmented rotor SRM was larger than that of the motor before optimization. Moreover, its dynamic and fault tolerance performances were better than those of the conventional SRM. Through the optimization and fault tolerance analysis of the fault-tolerant segmented rotor SRM, theoretical guidance for the design of BSG motors with safe and reliable characteristics is provided.

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“…Nevertheless, considerable noise is the main factor which is limited in the area requiring higher sound quality [6][7][8]. The noise of a SRM is mainly caused by the stator vibration as a result of the electromagnetic force variation [9,10]. Hence, it is necessary to research the motor vibration characteristics.…”

Section: Introductionmentioning

confidence: 99%

Method for acquisition of equivalent material parameters considering orthotropy of stator core and windings in SRM

Zuo

Liu

et al. 2019

IET Electric Power Applications

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To solve the problem of the orthotropic material parameters acquisition, a novel method for the acquisition of the equivalent material parameters considering the orthotropy of the stator core and the windings in a switched reluctance motor (SRM) is proposed. First, a theoretical analysis of the influences of the orthotropic material parameters on the vibration characteristics is implemented. Second, according to the finite element (FE) equivalent model and the modal parameters obtained by the modal test, the equivalent orthotropic material parameters of the stator core and the windings are captured, respectively. Finally, considering the complex connections among components, a FE model of a SRM is established and validated by the modal test. The results indicate that the vibration characteristics of the FE model of the stator core and the windings with the orthotropic features can be analysed by assigning the equivalent orthotropic material parameters; the elastic modulus E x (E y) and the shear modulus G xy have effects on both the symmetric modal frequencies and the antisymmetric modal frequencies; the shear modulus G xz (G yz) only affects the antisymmetric modal frequencies; the elastic modulus E z can neither change the symmetric modal frequencies nor the antisymmetric modal frequencies.

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Method for radial vibration modelling in switched reluctance motor

Cited by 20 publications

References 26 publications

Prediction of acoustic noise and vibration of a 24/16 traction switched reluctance machine

Prediction of acoustic noise and vibration of a 24/16 traction switched reluctance machine

Optimization and Experimental Analysis of a Segmented Rotor SRM of BSG for HEVs

Method for acquisition of equivalent material parameters considering orthotropy of stator core and windings in SRM

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