Algorithm for Creating of the Equivalent Thermal Circuit for PMSM

Equivalent thermal circuit with lumped parameters is a frequently used method for thermal modeling of electrical machines. This paper presents an algorithm of the modular thermal model for the Permanent Magnet Synchronous Machine (PMSM). Modularity is achieved by separating geometry into sub-models, which allows easy introduction of different topologies into the calculations which leads to easier setting for modeled machines. First, used methods are introduced than algorithm realized in MATLAB interface is described step by step, at the end results and verification with FEM calculations are presented.