Acoustic Noise/Vibration Reduction of a Single-Phase SRM Using Skewed Stator and Rotor

Yang, Hong-Yeol; Lim, Young‐Cheol; Kim, Hyun-Chul

doi:10.1109/tie.2012.2217715

Cited by 133 publications

(53 citation statements)

References 18 publications

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“…Coefficient k depends on the double layer (k= 0.5) or single layer (k= 1) winding configurations. For FPSRM, the end winding consists of plus an arc length of the span range of a coil and it is given by: (8) where k= 1 due to its single layer structure, is stator inner radius, is slot height, is number of slots, and is slot opening in mechanical degree (assume test temperature to be 60C). The nature of the endwindings in a FPSRM dictate that for this relatively short axial length of stator core, the total mean length per turn is more than doubled compared to the corresponding double layer winding SRMs, with consequent adverse implications for the phase resistance of the FPSRM.…”

Section: Copper Lossmentioning

confidence: 99%

“…This is particularly the case for low speed conditions. In order to reduce the vibration and acoustic noise, several noise mitigation strategies have been proposed in literature such as stator lamination shape optimization [7], rotor and stator skewing [8], hybrid excitation with a C-dump inverter to reduce the rapid change of radial magnetomotive force (mmf) [9], two-stage commutation [10], voltage smoothing using pulse-width modulation (PWM) [11], and active vibration damping using piezoelectric actuators [12] [13].…”

Section: Introductionmentioning

confidence: 99%

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Performance Comparison of Doubly Salient Reluctance Machine Topologies Supplied by Sinewave Currents

Jewell

et al. 2016

IEEE Trans. Ind. Electron.

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Abstract-This paper comprehensively investigates the electromagnetic performance of 3-phase, 12-slot, and 8-pole switched reluctance machines (SRMs) with different winding configurations, i.e. double/single layer, short pitched (concentrated) and fully pitched (distributed). These SRMs are supplied by sinewave currents so that a conventional 3-phase converter can be employed, leading to behavior which is akin to that of synchronous reluctance type machines. Comparisons in terms of static and dynamic performances such as d-and q-axis inductances, on-load torque, torque-speed curve, efficiency map, etc. have been carried out using two-dimensional finite element method (2-D FEM). It is demonstrated for the given size of machine considered, that for same copper loss and without heavy magnetic saturation, both single and double layer mutually coupled SRMs can produce higher on-load torque compared to conventional SRMs. Additionally, double layer mutually coupled SRM achieved the highest efficiency compared to other counterparts. When it comes to single layer SRMs, they are more suitable for middle speed applications and capable of producing higher average torque while lower torque ripple than their double layer counterparts at low phase current. Two prototype SRMs, both single layer and double layer, are built to validate the predictions.

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Section: Copper Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance Comparison of Doubly Salient Reluctance Machine Topologies Supplied by Sinewave Currents

Jewell

et al. 2016

IEEE Trans. Ind. Electron.

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“…To determine the pole-slot number combination, the magnetic radial force distributions of the 2pole-3slot and 2pole-6slot motors were analyzed using the Maxwell stress tensor, as shown in (1) [12]. This is because the force distribution determines the vibration mode of the machine and affects the rotary stability [13], [14].…”

Section: Pole-slot Number Combinationmentioning

confidence: 99%

Design and Verification of 150-krpm PMSM Based on Experiment Results of Prototype

Lim

Chai

Yang

et al. 2015

IEEE Trans. Ind. Electron.

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This paper proposes the design process of a 2.62kW-150krpm high-speed surface-mounted permanent magnet synchronous motor (SPMSM). To meet the required specifications, the numbers of poles and slots were determined by considering the maximum speed and the rotary stability affected by the vibration of the rotor. In addition, the paper describes not only the appropriate material selection method but the appropriate geometry design method based on analytic approaches. Furthermore, to precisely evaluate the bearing and windage losses at a high speed, a method that combines the finiteelement method (FEM) and the experiment results of the prototype was used. As a result, an improved motor was designed, which had higher maximum power and speed than the prototype, and a lower mass moment of inertia. Finally, tests were conducted to verify the validity of the proposed design process and the effectiveness of the motor.Index Terms -Copper loss, eddy current loss, high-speed machine, iron loss, mechanical loss, surface-mounted permanent magnet synchronous motor, vibration T

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“…Generally, three or four phases SRM is more popular to be applied considering torque dead zone and torque ripple minimization issues. However, nowadays, the single-phase SRM drive system has been improved and optimized by many researchers due to their reduced converter cost and low switching loss specially in high speed operation region [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Sensorless Estimation of Single-Phase Hybrid SRM using Back-EMF

Tang¹,

He²,

Lee³

et al. 2017

Journal of Electrical Engineering and Technology

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-This paper presents a novel scheme to estimate the rotor position of a single-phase hybrid switched reluctance motor (HSRM). The back-EMF generated by the permanent magnet (PM) field whose performance is motor parameter independent is adopted as an index to achieve the sensorless control. The differential value of back-EMF is calculated by hardware and processed by DSP to capture a fixed rotor position four times for every mechanical cycle. In addition, to accomplish the normal starting of HSRM, the determination method of the turn-off time position at the first electrical cycle is also proposed. In this way, a sensorless operation scheme with adjustable turn on/off angle can be achieved without substantial computation. The experimental verification using a prototype drive system is provided to demonstrate the viability of the proposed position estimation scheme.

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Acoustic Noise/Vibration Reduction of a Single-Phase SRM Using Skewed Stator and Rotor

Cited by 133 publications

References 18 publications

Performance Comparison of Doubly Salient Reluctance Machine Topologies Supplied by Sinewave Currents

Performance Comparison of Doubly Salient Reluctance Machine Topologies Supplied by Sinewave Currents

Design and Verification of 150-krpm PMSM Based on Experiment Results of Prototype

Sensorless Estimation of Single-Phase Hybrid SRM using Back-EMF

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