Optimization for Electromagnetic Noise Reduction in Claw Pole Alternator by Rotor Claw Chamfering

Wu, Shuanglong; Zhang, Yaodan

doi:10.1109/tie.2018.2815946

Cited by 28 publications

(4 citation statements)

References 25 publications

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“…Rotor claw chamfering and the tooth top arc design are proposed to reduce vibration and noise [16, 17], both methods affect the air gap. In this paper, increasing the stator split‐ratio can reduce the amplitude of the air‐gap flux density.…”

Section: Research On An Optimisation Design Methods For Reducing Vibmentioning

confidence: 99%

“…Nakano et al [15] mentioned a method of placing an auxiliary slot on the stator tooth to reduce the electromagnetic vibration and noise of machines. In [16], the electromagnetic noise is minimised by rotor claw chamfering; the proposed method can be used for auxiliary design in the initial design stage of the alternators. In [17], the tooth top arc design is proposed, the method is simple and feasible, and the radial electromagnetic force, which has a great influence on stator tooth, is weakened.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study of suppression of vibration and noise of PMSM for electric vehicles

Zhang

Hu³

et al. 2020

IET Electric Power Applications

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Zeroth‐order spatial electromagnetic force wave has been regarded as one of the main sources for electromagnetic vibration and noise of integer slot multipole permanent magnet synchronous machine (PMSM) used in electric vehicles. In this study, the 48‐slot‐8‐pole built‐in permanent magnet synchronous motor for a vehicle was taken as an example. The main sources and characteristic parameters (frequency and amplitude) of the zeroth‐order force wave of the integer slot multipole PMSM were presented. Based on this, a method of stator and rotor structure optimisation was proposed to effectively reduce magnitudes of vibration and noise for the machine by increasing the natural frequency and reducing the harmonic content and amplitude of electromagnetic force waves. The comparison of the noise reduced machine with the initial design was experimentally validated.

show abstract

Section: Research On An Optimisation Design Methods For Reducing Vibmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of suppression of vibration and noise of PMSM for electric vehicles

Zhang

Hu³

et al. 2020

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…Generally, the vibration in spatial orders of electromagnetic force waves are most serious, especially in low‐order force waves [1, 11]. Weakening the amplitudes of the low‐order electromagnetic force waves is one of the most effective methods to improve the vibration performance of the motor [12]. The electromagnetic force waves are very sensitive to the structural parameters of the permanent magnets (PMs) in PMSMs.…”

Section: Introductionmentioning

confidence: 99%

Research on weakening measure of radial electromagnetic force waves in permanent magnet synchronous motors by inserting auxiliary slots

Xing

Wang

Zhao

2020

IET Electric Power Applications

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The accurate calculation and analysis of electromagnetic force waves are especially crucial for comprehensively predicting and weakening the electromagnetic vibration of electrical machines. In this study, a fast and accurate calculation method of radial electromagnetic force density of surface‐mounted permanent magnet synchronous motor (PMSM) is presented, the radial electromagnetic force density including amplitude, frequency and order is obtained and the accuracy is verified. Comprehensively considering that the effects of the auxiliary slots on cogging torque and torque ripple, the weakening measure of radial electromagnetic force waves by inserting auxiliary slots is research, and the optimal determinations of the number and the structural parameters of auxiliary slots in PMSMs with different slot–pole combinations are summarised, and six PMSMs with 6‐pole/36‐slot (6p36s), 4p36s, 6p9s, 8p9s, 8p12s and 10p12s are analysed to verify the universality of the conclusions.

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“…1. To improve the performance of the claw-pole alternator, the parameter optimization of the rotor core based on field analysis has been carried out [1]- [4]. There are, however, difficulties in the parameter optimization to find novel structures with excellent performance which have never been proposed.…”

Section: Introductionmentioning

confidence: 99%

3-D Topology Optimization of Claw-Pole Alternator Using Gaussian-Basis Function With Global and Local Searches

et al. 2020

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This paper proposes a two-step topology optimization method based on the normalized Gaussian functions. The proposed method is shown effective for design of a claw-pole alternator. In this method, the global search using the micro-genetic algorithm is followed by the local search using the sensitivity analysis based on the adjoint variable method. The three dimensional structure of the rotor is optimized using the proposed method under low and high speed conditions.

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Optimization for Electromagnetic Noise Reduction in Claw Pole Alternator by Rotor Claw Chamfering

Cited by 28 publications

References 25 publications

Study of suppression of vibration and noise of PMSM for electric vehicles

Study of suppression of vibration and noise of PMSM for electric vehicles

Research on weakening measure of radial electromagnetic force waves in permanent magnet synchronous motors by inserting auxiliary slots

3-D Topology Optimization of Claw-Pole Alternator Using Gaussian-Basis Function With Global and Local Searches

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