Use of MgB2 Superconductors for Excitation Field in Synchronous Machines-Part II: Inserts

被引:5
作者
Marignetti, Fabrizio [1 ]
Cavaliere, Vincenzo [2 ]
Giunchi, Giovanni [3 ]
Messina, Giuseppe [4 ]
Attaianese, Ciro [1 ]
Della Corte, Antonio [4 ]
机构
[1] Univ Cassino & Southern Latium, Dept Elect & Informat Engn, I-03043 Cassino, Italy
[2] Consorzio Ric Innovat Sud, I-80147 Naples, Italy
[3] Edison SpA, R&D Dept, I-20121 Milan, Italy
[4] Agenzia Nazl Nuove Tecnol Energia & Sviluppo Econ, I-00044 Frascati, Italy
关键词
Electromagnetic measurements; magnesium diboride; MgB2; reactive liquid-Mg infiltration; superconductors; synchronous machines; trapped field;
D O I
10.1109/TASC.2013.2256355
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
The flux trapping capabilities of bulk magnesium diboride disks have been investigated in part one on the basis of both measurements and numerical simulations. In this companion paper, a different fabrication technique of MgB2 magnets for synchronous machine excitation is illustrated and evaluated. In order to overcome the limitations to the field trapping capabilities that have been highlighted by the experiments, two different layouts are built and tested. The first is made by subdividing the disk into concentric rings, and the second is made by embedding circular or spiral circuits inside steel disks. The magnetic field trapping characteristics of these MgB2 inserts are studied.
引用
收藏
页数:6
相关论文
共 7 条
[1]  
Durrell J. H., 2012, SUPERCOND SCI TECH, V25, P1
[2]  
Giunchi G, 2006, AIP CONF PROC, V824, P813
[3]   MgB2 Superconductive Inserts: Products Between Bulks and Wires [J].
Giunchi, Giovanni .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2011, 21 (03) :1564-1567
[4]   ENERGY RELEASED BY FLUX JUMPS IN SUPERCONDUCTORS [J].
IWASA, Y ;
MONTGOMERY, DB ;
POLZER, HW .
JOURNAL OF APPLIED PHYSICS, 1970, 41 (06) :2476-+
[5]  
Marignetti F., 2013, IEEE T APPL SUPERCON, V23
[6]   Magnetic Field Trapping in MgB2 Bulks and Inserts [J].
Perini, Elena ;
Giunchi, Giovanni ;
Saglietti, Luca ;
Albisetti, Alessandro Figini ;
Matrone, Antonio ;
Cavaliere, Vincenzo .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2011, 21 (03) :2690-2693
[7]   Temperature dependence of the trapped magnetic field in MgB2 bulk superconductors [J].
Viznichenko, RV ;
Kordyuk, AA ;
Fuchs, G ;
Nenkov, K ;
Müller, KH ;
Prikhna, TA ;
Gawalek, W .
APPLIED PHYSICS LETTERS, 2003, 83 (21) :4360-4362