Thermal behaviour of DC power inductor of 600 kW power supply for particle accelerators

The paper investigates a thermal behaviour of a DC inductor deployed in a 600 kW power converter for particle accelerators. The inductor is manufactured from electrical steel core and two magnetically coupled windings with integrated air ducts for enhanced air circulation. The thermal analysis of inductor are carried out by means of a Computational Fluid Dynamics (CFD) model and simulations. The paper describes modelling of magnetic core and relatively complex winding bodies with integrated air ducts. The CFD thermal model is experimentally evaluated.