Performance Characteristics of an HTS Linear Synchronous Motor With HTS Bulk Magnet Secondary

A single-sided high-temperature superconducting (HTS) linear synchronous motor (HTSLSM) with an HTS bulk magnet array as its secondary has been developed, and a split pulse coil magnetization system is used to magnetize the secondary HTS bulks with alternating magnetic poles. The electromagnetic parameters of the HTSLSM have been calculated to verify its performance. The HTSLSM is incorporated with a developed control system based on the voltage space vector pulsewidth modulation strategy implemented by a computer-software-controlled platform. A compositive experimental testing system has also been developed to measure the thrust and normal force of the HTSLSM. The traits of the thrust and normal force have been comprehensively identified experimentally, and the results from the experiments and analysis would benefit the electromagnetic design and the control scheme development for the HTSLSM.

[1]  Masato Murakami,et al.  High-temperature superconductor bulk magnets that can trap magnetic fields of over 17 tesla at 29 K , 2003, Nature.

[2]  G. Xiong,et al.  Analysis of fields and forces in a permanent magnet linear synchronous machine based on the concept of magnetic charge , 1989 .

[3]  Ji Hoon Kim,et al.  Development of a superconducting linear synchronous motor , 2002 .

[4]  A. Ishiyama,et al.  Operational characteristics of linear synchronous actuator with field-cooled HTS bulk secondary , 2006, IEEE Transactions on Applied Superconductivity.

[5]  Atsushi Ishiyama,et al.  Improvement of superconducting cylindrical linear induction motor , 2001 .

[6]  Lu Hai Zheng,et al.  Driving models of high temperature superconducting linear synchronous motors and characteristic analysis , 2011 .

[7]  Keiji Yoshida,et al.  Optimal design of thrust force in vertical-type HTS bulk LRM , 2005 .

[8]  Naomichi Sakai,et al.  Field trapping property of Gd–Ba–Cu–O bulk superconductor 140 mm in diameter , 2006 .

[9]  Jianguo Zhu,et al.  Analysis and experimental validation of an HTS linear synchronous propulsion prototype with HTS magnetic suspension , 2011 .

[10]  Kenji Tasaki,et al.  The Project Overview of the HTS Magnet for Superconducting Maglev , 2007, IEEE Transactions on Applied Superconductivity.

[11]  H. Nakao,et al.  HTS Magnet for Maglev Applications (1)— Coil Characteristics , 2006, IEEE Transactions on Applied Superconductivity.

[12]  I. Husain,et al.  Permanent Magnet Synchronous Motor Magnet Designs with Skewing for Torque Ripple and Cogging Torque Reduction , 2007, 2007 IEEE Industry Applications Annual Meeting.

[13]  H. Nakao,et al.  The RaD Project of HTS Magnets for the Superconducting Maglev , 2006 .

[14]  H. Nakao,et al.  The Running Tests of the Superconducting Maglev Using the HTS Magnet , 2007, IEEE Transactions on Applied Superconductivity.

[15]  Jianguo Zhu,et al.  Design and electromagnetic analysis of a HTS linear synchronous motor , 2009, 2009 International Conference on Applied Superconductivity and Electromagnetic Devices.

[16]  Atsushi Ishiyama,et al.  Trial production and experiment of linear synchronous actuator with field-cooled HTS bulk secondary , 2003 .

[17]  A. Ishiyama,et al.  Trial production and experiments of linear actuator with HTS bulk secondary , 2001 .

[18]  I. Boldea,et al.  Forces and parameters of permanent magnet linear synchronous machines , 1987 .

[19]  T. Lipo,et al.  Design of a linear bulk superconductor magnet synchronous motor for electromagnetic aircraft launch systems , 2004, IEEE Transactions on Applied Superconductivity.

[20]  Jianguo Zhu,et al.  Thrust characteristics of a double-sided high temperature superconducting linear synchronous motor with a high temperature superconducting magnetic suspension system , 2011 .