Cable harmonic heating
Posted Sep 18, 2023, 6:36 a.m. EDT Electromagnetics, Low-Frequency Electromagnetics, Heat Transfer, Results & Visualization, Studies & Solvers, Physics Interfaces Version 6.1 2 Replies
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I am new to COMSOL and have a question regarding a project I am working on. I am basically trying to model a 3-phase buried cable system with the purpose of studying the heating caused by having harmonic currents flowing in the cables and the impact that the skin and proximity effects have on this heating. I have successfully modeled the cable system and can individually see the impact of the harmonics at each frequency separately by running a parametric sweep in a Freqeuncy-Stationary study however I am interested in running the simulation with all the currents present at the same time in the coil entity. The idea I had was to somehow to run the study at 50Hz and then have the final temperature of this iteration be the initial temperature for the cables in the next step (100Hz) and so on up to the final desired frequency (2500Hz) but I have no idea how to do this. I would really appreciate the help. Please find attached a copy of my COMSOL file.