Paper Info
Title
Research of a Stator PM Excitation Solid Rotor Machine for Flywheel Energy Storage System
Abstract
A typical flywheel energy storage system (FESS) includes an electrical machine, a flywheel, and magnetic bearings, which are independent of each other. Therefore, the structure of FESS is complicated, which leads to the problems of high cost and low integration. This article presents a novel stator PM excitation solid rotor machine (SPE-SRM) for FESS, which integrates an electrical machine, flywheels, and a magnetic bearing. The design method of the SPE-SRM is presented specifically. First, the structure and operation principle of the SPE-SRM are illustrated. Second, the design and optimization of the flywheel-rotor are presented with considering of power, energy storage, and mechanical strength. Third, the magnetic equivalent circuit of the SPE-SRM is established to simplify the design. Besides, the armature reaction and leakage flux factor are investigated. Fourth, the performance indexes, including torque, suspension force, no-load back electromotive force (back-EMF), losses, and temperature rise are fully analyzed by the finite element analysis. Finally, a 22 kW prototype is manufactured and tested. The rationality of the concept and design is validated by experiments. The SPE-SRM has the merits of high integration, robust structure, and low cost, so it has the potential for wide application in FESS.
Year
DOI
Venue
2022
10.1109/TIE.2021.3130323
IEEE Transactions on Industrial Electronics
Keywords
DocType
Volume
Flywheel energy storage system (FESS),stator PM excitation,solid rotor,suspension force
Journal
69
Issue
ISSN
Citations 
12
0278-0046
0
PageRank 
References 
Authors
0.34
5
7
Name
Order
Citations
PageRank
Caiyong Ye101.01
Dezuan Yu200.34
Kaifeng Liu300.34
Yongzihao Dai400.34
Cong Deng500.34
Jiangtao Yang611.75
Jianping Zhang700.34