Active Control Method for Passing Through Critical Speeds of Rotating Superconducting Rotor by Changing Stiffness of the Supports With Use of Electromagnetic Force

Author

Xinning Hu ; Fei Gao ; Chunyan Cui ; Jianhua Liu ; Hui Wang ; Housheng Wang ; Yinming Dai ; Zhipeng Ni ; Yi Li ; Gongqi Yu ; Luguang Yan

Author_Institution

Key Lab. of Appl. Supercond., Inst. of Electr. Eng., Beijing, China

Volume

23

Issue

3

fYear

2013

fDate

41426

Firstpage

5201304

Lastpage

5201304

Abstract

This paper describes a method of supporting stiffness control of a rotating spherical superconducting rotor for passing through critical speeds. In this method, the vibration of the superconducting rotor due to rotation is controlled by changing the supporting stiffness. In the analysis, the exact solution of the rotation system controlled by this method is derived. Numerical calculations have been performed and experimental tests also carried out to verify the present control method and the theoretical results.

Keywords

elasticity; electromagnetic forces; machine control; rotors; superconducting device testing; superconducting machines; vibration control; active control method; critical speeds; electromagnetic force; experimental tests; numerical calculations; rotating spherical superconducting rotor; rotation system; stiffness control; vibration control; Magnetic levitation; Niobium; Rotors; Superconducting coils; Suspensions; Vibrations; Active vibration control; electromagnetic force; super conducting rotor;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2232699

Filename

6389763