Research on the thermal field and active water cooling system design of an air-core compulsator

Shumei Cui, Weiduo Zhao, Shaopeng Wu

Research output: Journal PublicationArticlepeer-review

13 Citations (Scopus)


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.

Original languageEnglish
Article number5555985
Pages (from-to)257-262
Number of pages6
JournalIEEE Transactions on Plasma Science
Issue number1 PART 1
Publication statusPublished - Jan 2011
Externally publishedYes


  • Active cooling design
  • air-core compulsator
  • FEM thermal analysis
  • loss calculation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics


Dive into the research topics of 'Research on the thermal field and active water cooling system design of an air-core compulsator'. Together they form a unique fingerprint.

Cite this