SUPERCONDUCTING ROTATING ELECTRICAL MACHINE, AND STATOR USED FOR SUPERCONDUCTING ROTATING ELECTRICAL MACHINE

摘要

A superconducting rotating electrical machine has a rotor with superconducting windings and a stator disposed around the rotor. The stator has a number of teeth disposed at a regular interval about a rotational axis of the rotor to define slots each between adjacent teeth and a plurality of windings, each winding having a strip-like wire member, the wire member having a plurality of rectangular cross-section wires in which said rectangular wires are arranged in parallel to each other and electrically insulated away from each other, the winding being constructed by winding the strip-like wire member a plurality of times to have first and second winding portions having a cross section in which the rectangular wires are positioned in matrix. The first and second winding portions have the same arrangement of wires in a cross section perpendicular to the rotational axis. The first winding portion is disposed in an outward region of one of the slots and the second winding portion is disposed in an inward region of another of slots corresponding to the one slot.