Effect of Pulsewidth Modulation on Electromagnetic Noise of Interior Permanent Magnet Synchronous Motor Drives

Ibrahim, Issah; Mohammadi, Mohammad Hossain; Ghorbanian, Vahid; Lowther, D.A.

doi:10.1109/tmag.2019.2920107

Cited by 18 publications

(9 citation statements)

References 10 publications

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“…This helps to understand the vibration results, especially when the EM force gets close to the natural frequency (f s ) of the stator. Hence, a 3D modal analysis is performed to evaluate the natural frequencies of the stator and the complete model and their associated mode shapes to get a full insight into the intrinsic behavior of both designs as in Ibrahim et al (2019). Theoretically, modal analysis is performed by solving equation ( 1) for free vibrations, i.e.…”

Section: Structural Modelingmentioning

confidence: 99%

“…The issues with acoustic noise have been studied extensively, and a survey of literature (Gieras et al , 2005; Al Nahlaoui et al , 2011) covers most of the important aspects up to date. While many of these works try to reduce the simulation time by focusing on sound power radiated directly from the stator (Islam and Husain, 2010; Mohammadi et al , 2018; Ibrahim et al , 2020; Vermaand and Balan, 1994; Al Nahlaoui et al , 2011; Ibrahim et al , 2019; Mohammadi et al , 2018), the overall acoustic behavior of a typical electric motor is a cumulative effect of other components such as the rotor, the housing, the support, etc. As far as the current state of the art is concerned, there are no known correlations between the stator sound pressure level (L S ) and the sound pressure level of the complete electric motor (L M ).…”

Section: Introductionmentioning

confidence: 99%

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Correlating structural complexity and acoustic noise performance of electric motors

Ibrahim

Mohammadi

Ghorbanian

et al. 2022

COMPEL

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Purpose Acoustic noise is a crucial performance index in the design of electrical machines. Due to the challenges associated with modelling a complete motor, the stator is often used to estimate the sound power in the prototyping stage. While this approach greatly reduces lengthy simulations, the actual sound power of the motor may not be known. But, from the acoustic noise standpoint, not much is known about the correlation between the stator and complete motor. This paper, therefore, aims to use the sound pressure levels of the stator and the full motor to investigate the existence of correlations in the interior permanent magnet synchronous motor. Design/methodology/approach A multiphysics simulation framework is proposed to evaluate the sound pressure levels of multiple motor geometries in a given design space. Then, a statistical analysis is performed on the calculated sound pressure levels of each geometry over a selected speed range to compare the correlation strength between the stator and the full model. Findings It was established that the stator and the complete motor model are moderately correlated. As such, a reliance on the stator sound power for design and optimization routines could yield inaccurate results. Originality/value The main contribution involves the use of statistical tools to study the relationship between sound pressure levels associated with the stator geometry and the complete electric motor by increasing the motor sample size to capture subtle acoustic correlation trends in the design space of the interior permanent magnet synchronous motor.

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Section: Structural Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlating structural complexity and acoustic noise performance of electric motors

Ibrahim

Mohammadi

Ghorbanian

et al. 2022

COMPEL

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“…While a complete thermal analysis is possible, for the sake of demonstrating the process, the temperature of the entire device was fixed but the material properties appropriate to the temperature were used. The electromagnetic, and structural-field analysis were realized using the approach in Ibrahim et al ( 2019). Briefly, the motor was parameterized to easily vary the geometry.…”

Section: Coupled Electromagnetic-mechanical-thermal-acoustic Analysismentioning

confidence: 99%

Design tools for electromagnetic-driven multi-physics systems using high performance computing

Lowther¹,

Ghorbanian²,

Mohammadi³

et al. 2019

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Purpose The design of electromagnetic systems for a variety of applications such as induction heating, electrical machines, actuators and transformers requires the solution of a multi-physics problem often involving thermal, structural and mechanical coupling to the electromagnetic system. This results in a complex analysis system embedded within an optimization process. The appearance of high-performance computing systems over the past few years has made coupled simulations feasible for the design engineer. When coupled with surrogate modelling techniques, it is possible to significantly reduce the wall clock time for generating a complete design while including the impact of the multi-physics performance on the device. Design/methodology/approach An architecture is proposed for linking multiple singe physics analysis tools through the material models and a controller which schedules the execution of the various software tools. The combination of tools is implemented on a series of computational nodes operating in parallel and creating a “super node” cluster within a collection of interconnected processors. Findings The proposed architecture and job scheduling system can allow a parallel exploration of the design space for a device. Originality/value The originality of the work derives from the organization of the parallel computing system into a series of “super nodes” and the creation of a materials database suitable for multi-physics interactions.

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“…Usually, mechanical factors, aerodynamic contributions, and electromagnetic harmonics are the main sources of the machine noise [ 5 , 6 ]. Electromagnetic harmonic components in particular contribute a great number of high-frequency noises [ 7 , 8 , 9 ]. The electromagnetic noise is generated by the radial electromagnetic force harmonics in the air gap exciting the stator and the rotor.…”

Section: Introductionmentioning

confidence: 99%

Damper Winding for Noise and Vibration Reduction of a Permanent Magnet Synchronous Machine

Bauw

Romary

et al. 2022

Sensors

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In this paper, a passive method for the noise reduction of the PMSM (Permanent Magnet Synchronous Machine) is presented. The principle is to add an auxiliary three-phase winding into the same slots as the initial stator winding, short-circuited via three capacitors of suitable values. The aim is to create a damping effect for flux density harmonic components, especially high-frequency harmonics from the PWM (PulseWidth Modulation), in the air gap in order to reduce the noise and vibration of the PMSM. The method can significantly reduce the global sound pressure level and vibrations for specific frequencies. Because of passive features, the additional winding effectively mitigates magnetic noise without greatly increasing the complexity of design and manufacturing, which also extends its applicability to different PMSMs.

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Effect of Pulsewidth Modulation on Electromagnetic Noise of Interior Permanent Magnet Synchronous Motor Drives

Cited by 18 publications

References 10 publications

Correlating structural complexity and acoustic noise performance of electric motors

Correlating structural complexity and acoustic noise performance of electric motors

Design tools for electromagnetic-driven multi-physics systems using high performance computing

Damper Winding for Noise and Vibration Reduction of a Permanent Magnet Synchronous Machine

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