This paper presents a combined electrothermal formulation of the partial element equivalent circuit (PEEC) method. It is shown that the distributed thermal problem can be formulated as an equivalent thermal network that shares the same topological and geometrical properties of the PEEC equivalent model. Temperature-dependent thermal heat conduction and convection models are adopted thus leading to a time-varying thermal network, which is studied by using pertinent techniques along with the electrical equivalent circuit. The proposed electrothermal PEEC solver is used to analyze 2 problems of interest and verified through comparison with a commercial software.
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