论文信息 - Magnetic Bearing Sets for a Flywheel System

Magnetic Bearing Sets for a Flywheel System

This paper presents a magnetic bearing set developed to work in a flywheel energy storage system. The bearing set is composed of a permanent magnetic bearing (PMB) and a superconducting magnetic bearing (SMB). A new configuration of a PMB having Nd-Fe-B magnet rings and a back yoke is proposed and compared with an existing one. Finite element method (FEM) simulations were used to design two different PMB configurations. Measurement results of axial and radial forces were carried out in zero field cooling (ZFC) and field cooling (FC) processes in two SMB topologies. These measured force results are presented and discussed in order to discover which configuration is more promising for the proposed application.

[1] J.-P. Yonnet,et al. Permanent magnet bearings and couplings , 1981 .

[2] John R. Hull,et al. TOPICAL REVIEW: Superconducting bearings , 2000 .

[3] G. Fuchs,et al. Static forces in a superconducting magnet bearing , 1995 .

[4] A. C. Day,et al. Temperature and frequency effects in a high-performance superconducting bearing. , 2002 .

[5] Y. C. Kim,et al. Design a hybrid high Tc superconductor bearings for flywheel energy storage system , 2002 .

[6] Richard M. Stephan,et al. Development of hybrid bearing system with thrust superconducting magnetic bearing and radial active electromagnetic bearing , 2000 .

[7] R. de Andrade,et al. Voltage sags compensation using a superconducting flywheel energy storage system , 2005, IEEE Transactions on Applied Superconductivity.

[8] S. Earnshaw. On the Nature of the Molecular Forces which Regulate the Constitution of the Luminiferous Ether , .

[9] R. de Andrade,et al. Halbach array superconducting magnetic bearing for a flywheel energy storage system , 2005, IEEE Transactions on Applied Superconductivity.

[10] T. M. Mulcahy,et al. Test results of 2-kWh flywheel using passive PM and HTS bearings , 2000 .

[11] W. Chu,et al. Practical adaptation in bulk superconducting magnetic bearing applications , 1992 .