TY - JOUR
T1 - Research on the thermal field and active water cooling system design of an air-core compulsator
AU - Cui, Shumei
AU - Zhao, Weiduo
AU - Wu, Shaopeng
N1 - Funding Information:
Manuscript received January 11, 2010; revised May 29, 2010; accepted June 15, 2010. Date of publication August 23, 2010; date of current version January 7, 2011.This work was supported in part by the PLA General Armament Department under Advanced Project Contract 51326020402.
PY - 2011/1
Y1 - 2011/1
N2 - Compulsators are popular choices for high-end railgun power supplies. In order to maximize energy stores and power densities, compulsators are designed as an air-core prototype. However, new problems have also been brought out by the new structure. Due to the poor thermal conductivity of composite materials and the high field current needed to maintain the magnetic potential, one of the principal limiting factors for achieving continuous discharges is the high winding temperature rise. In this paper, on the basis of electromagnetic analysis, the losses of the coils and compensating shield could be calculated first, and then, a transient 3-D finite-element thermal analysis was performed for both the stator and rotor. Finally, for the purpose of stabilizing the hottest spot temperature of the coils at a given level, an active cooling system has been designed and simulated. The presented method can be applied to other compulsators having the same thermal issues.
AB - Compulsators are popular choices for high-end railgun power supplies. In order to maximize energy stores and power densities, compulsators are designed as an air-core prototype. However, new problems have also been brought out by the new structure. Due to the poor thermal conductivity of composite materials and the high field current needed to maintain the magnetic potential, one of the principal limiting factors for achieving continuous discharges is the high winding temperature rise. In this paper, on the basis of electromagnetic analysis, the losses of the coils and compensating shield could be calculated first, and then, a transient 3-D finite-element thermal analysis was performed for both the stator and rotor. Finally, for the purpose of stabilizing the hottest spot temperature of the coils at a given level, an active cooling system has been designed and simulated. The presented method can be applied to other compulsators having the same thermal issues.
KW - Active cooling design
KW - FEM thermal analysis
KW - air-core compulsator
KW - loss calculation
UR - http://www.scopus.com/inward/record.url?scp=78651268487&partnerID=8YFLogxK
U2 - 10.1109/TPS.2010.2056938
DO - 10.1109/TPS.2010.2056938
M3 - Article
AN - SCOPUS:78651268487
SN - 0093-3813
VL - 39
SP - 257
EP - 262
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
IS - 1 PART 1
M1 - 5555985
ER -