Voltage-Source Finite-Element Model of High Temperature Superconducting Tapes

A voltage-source finite-element model of high-temperature superconducting tapes is presented in this paper. This model is a combined model built on both MATLAB and COMSOL, and it is used to study the overcurrent characteristics of non-uniform HTS tapes. The electrical parameters, magnetic distribution, and temperature distribution are separately calculated by different software. The temperature, magnetic flux intensity, and generated heat are set as the intermediate exchange variables. The model accuracy is calibrated and verified by short-circuit experiments of a uniform five-turn HTS solenoid. Then, the basic model is expanded and used to simulate the overcurrent characteristics of nonuniform HTS tapes. Conclusions are provided by considering both simulation and experimental results from these non-uniform tapes, and the results of this study can be used for the design of superconducting devices.