Design and Manufacture of a High-speed Rotor in a Flywheel Demonstrator

被引：0
|
作者：
Li, Xing [1 ]
An, Jeongki [1 ]
Erd, Nicolas [1 ]
Dietz, Daniel [1 ]
Gemeinder, Yves [1 ]
Binder, Andreas [1 ]
机构：
[1] Tech Univ Darmstadt, Inst Elect Energy Convers, Darmstadt, Germany
来源：
2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2020年
关键词：
Flywheel; Rotor; Strength;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high-speed flywheel demonstrator with 28 kW rated power was designed and built. The rotor is made of steel, which contains 0.5 kWh energy capacity at the maximum revolution speed of 24 000 min(-1). This paper presents the mechanical issues regarding the design and manufacturing of this steel rotor. During the hardening process, an unpredicted damage occurred in the rotor due to overloaded thermal stress. The analysis of this damage and the solution are presented. After assembling the rotor components of the drive machine and the magnetic bearings, the rotor was tested at 120 % overspeed. The designed rotor passed the test successfully up to the speed of 28 800 min(-1) for 2 minutes according to standard IEC 60034-1. After assembled in the complete system, the rotor was also successfully driven up to the maximum operating speed of 24 000 min(-1), suspended by magnetic bearings.
引用
收藏
页码：384 / 389
页数：6
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