Heat transfer analysis in the design phase of a high temperature superconductor motor | IEEE Conference Publication | IEEE Xplore

Heat transfer analysis in the design phase of a high temperature superconductor motor


Abstract:

Contemporary superconductor synchronous motors utilize high current density, high temperature superconductor (HTS) direct current windings that request special cooling te...Show More

Abstract:

Contemporary superconductor synchronous motors utilize high current density, high temperature superconductor (HTS) direct current windings that request special cooling technologies. This paper presents a preliminary study in the design phase on several aspects of the thermal stability of a small power prototype of an HTS motor. The model we developed is notional, aimed at investigating the design of the cooling system. We present electromagnetic field and heat transfer mathematical models, and their numerical implementation. The results outline the heat transfer mechanisms, the hot spot regions in the motor, and may provide information useful to the motor design.
Date of Conference: 20-22 May 2010
Date Added to IEEE Xplore: 15 July 2010
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ISSN Information:

Conference Location: Brasov, Romania

I. Introduction

The new generation of superconductor synchronous motors are provided with high temperature superconductor (HTS), high current density field windings that request special cooling technologies: the rotor is designed as a compact structure with cryogenically cooled HTS coils. These machines have substantial advantages when compared to their classical counterparts: they are (20–30%) lighter for the same rated power, much smaller sizes, greater power density (the HTS wires conduct more than 140 times the current of conventional copper wires with the same dimensions while delivering two to three times more power per unit weight), higher durability / longer life, and significant higher efficiency [1]–[5].

References

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