Investigation of superconducting closed winding parametric dependences on contact resistance

Superconducting closed winding is the main part of high-power superconducting synchronised generators. The dependence of the electromagnetic parameters of the coil on the design features (geometric dimensions, number of turns, method of connection) is insufficiently studied. On the basis of the method of mathematical modelling of processes in physical systems, a mathematical model of DC flow in a superconducting closed coil, as well as the process of its guidance, has been developed in this paper. Various circuit models have been created to help calculate the modes of operation of the coil and the necessary parameters of the current source (emf) for its “charging”. An experimental installation for testing the mathematical model has been developed and performed. The obtained experimental data obtained coincide with the results of the modelling.