HYSTERESIS ELECTRICAL MACHINES WITH HIGH-TEMPERATURE SUPERCONDUCTING ROTORS

A new type of electrical machine is considered. Operation of these mac hines is based on the hysteresis phenomenon in bulk high-temperature s uperconductors. Theory and calculated results of electromagnetic proce sses and parameters of these machines for generater and motor operatio n are given. The influence of the cooling conditions of the supercondu cting rotor on the machine parameters is evaluated. Experimental resul ts and the design of a nitrogen-cooled superconducting motor are descr ibed. Comparative analysis of superconducting motor performance with t hat for electrical motors of traditional design has been carried out. Possible application of these machines in aeronautical and other equip ment is discussed.