Research on the Torque and Back EMF Performance of a High Speed PMSM Used for Flywheel Energy Storage

Jing Zhao, Zhongxin Gu, Bin Li, Xiangdong Liu, Xiaobei Li and Zhen Chen
Additional contact information
Jing Zhao: School of Automation, Beijing Institute of Technology, Beijing 100081, China
Zhongxin Gu: School of Automation, Beijing Institute of Technology, Beijing 100081, China
Bin Li: School of Automation, Beijing Institute of Technology, Beijing 100081, China
Xiangdong Liu: School of Automation, Beijing Institute of Technology, Beijing 100081, China
Xiaobei Li: School of Automation, Beijing Institute of Technology, Beijing 100081, China
Zhen Chen: School of Automation, Beijing Institute of Technology, Beijing 100081, China

Energies, 2015, vol. 8, issue 4, 1-22

Abstract: Due to advantages such as high energy density, high power density, rapid charge and discharge, high cyclic-life, and environmentally friendly, flywheel energy storage systems (FESs) are widely used in various fields. However, the performance of FES systems depends on the performance of a high speed machine, therefore, the design and optimization of a high efficiency and high power density machine are very crucial to improve the performance of the whole FES system. In this paper, a high speed permanent-magnet synchronous machine (PMSM) is researched. Considering the requirement of low torque ripple in low speed and loss caused by back electromotive force (EMF) harmonics, the electromagnetic performance is improved from points of view of slot/pole matching, magnetic-pole embrace with the finite element method (FEM). Furthermore, the magnetic-pole eccentricity, the slot opening, the thickness of PM and air-gap length are also optimized with Taguchi method. The electromagnetic performance, such as torque ripple, cogging torque, average torque and back EMF wave are much improved after optimization. Finally, experiments are carried out to verify the calculated results.

Keywords: flywheel energy storage (FES); high speed; permanent-magnet synchronous machine (PMSM); torque ripple; Taguchi method; back electromotive force (EMF); cogging torque (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/8/4/2867/pdf (application/pdf)
https://www.mdpi.com/1996-1073/8/4/2867/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:8:y:2015:i:4:p:2867-2888:d:48189

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().