Abstract
Increasing the number of pole pairs leads to a lower electromagnetic yoke, and therefore, lower vibration and magnetic noise occur. In this paper, the influence of different numbers of pole pairs on the vibroacoustic design aspects of the machine is studied for the first time using a multislice subdomain method (MS-SDM) while considering the natural frequencies under a variable speed analysis. This paper aims to determine the optimal number of pole pairs for a low-speed, high-torque permanent magnet synchronous generator (PMSG) with double-layer, fractional-slot, nonoverlapping, concentrated windings (FSCWs) for wind turbine applications. First, all possible slots per pole per phase combinations, which offer the use of double-layer FSCW, are studied through a magnetomotive force (MMF) harmonic analysis. Second, the MS-SDM of the PMSG is studied to examine the vibroacoustic performance under a variable speed analysis. Finally, all affected major parameters are compared in order to find the optimal pole number of the PMSG. To verify the MS-SDM-based results, both 3-D finite element analysis and experimental investigations are employed.
| Original language | English |
|---|---|
| Article number | 8573898 |
| Pages (from-to) | 126-134 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Transportation Electrification |
| Volume | 5 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Mar 2019 |
Bibliographical note
Funding Information:Manuscript received September 10, 2018; revised November 3, 2018; accepted December 9, 2018. Date of publication December 12, 2018; date of current version March 19, 2019. This work was supported by the Energy Processing and Integrated Circuits Group under Grant 590100-042615257-4. (Corresponding author: Pedram Asef.) P. Asef and R. B. Perpiñà are with the Department of Electrical Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, 08019 Barcelona, Spain (e-mail: [email protected]).
Publisher Copyright:
© 2018 IEEE.
Funding
Manuscript received September 10, 2018; revised November 3, 2018; accepted December 9, 2018. Date of publication December 12, 2018; date of current version March 19, 2019. This work was supported by the Energy Processing and Integrated Circuits Group under Grant 590100-042615257-4. (Corresponding author: Pedram Asef.) P. Asef and R. B. Perpiñà are with the Department of Electrical Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, 08019 Barcelona, Spain (e-mail: [email protected]).
Keywords
- Finite element analysis
- magnetic noise
- permanent magnet machines
- resonance
- subdomain model
- variable speed
- vibration
ASJC Scopus subject areas
- Automotive Engineering
- Transportation
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering