Simplified Model of Contactless Air-Core Power Alternator and Transfer Using Ideal Superconductor

Abstract

The feasibility study of a contactless power transfer (CPT) system using high temperature superconducting (HTS) DC windings has been carried out. The analyses on two HTS CPT application schemes with iron-core and air-core loosely-coupled transformer structures indicate that the introduction of HTS DC windings makes the large-current coupling CPT available for improving the transfer power and efficiency, promising for large-power AC and DC contactless loads, and its transfer efficiency almost coincides with efficiency of the cooperated motor. The design considerations and procedures of the HTS CPT system have also been discussed.