Electrical, magnetic and thermal circuit modelling of a superconducting half-wave transformer rectifier flux pump using Simulink

• DOI: 10.1016/j.supcon.2023.100053
• Publication Date: 2023-07-27T18:33:17Z
• Authors: A.C. Francis; S. Venuturumilli; D.A. Moseley; S. Claridge; B. Leuw; R.A. Badcock; C.W. Bumby
• Keywords: Superconducting electric machine; Rectifier (neural networks); Magnetic circuit

Superconducting flux pumps (FP) are capable of supplying superconducting circuits with high currents by additively current over a number cycles without introducing large amounts heat into the cryogenic environment. FPs can be broadly classified two types: dynamo and transformer rectifier. Modelling behaviour these systems is an emerging field. In this work model half wave magnetically switched rectifier FP created in MATLAB/Simulink/Simscape presented. Unlike existing models, characteristics all circuit elements fully integrated allowing to accurately incorporated. The presented method uses pre-calculated look-up tables, populated experimentally derived material qualities simulate elements. thermal evolution switches, calculated simultaneously magnetic field switching interaction has also been included. This compared performance real world during pumping load coil found accurate. Furthermore, illustrates how small heating at switch profoundly affect many cycles.