Research on main insulation temperature field for open-type high energy density permanent magnet motor

According to the fluid-solid heat transfer theory, taking the Main Propulsion Motor(MPM) of Unmanned Aerial Vehicle (UAV) as the object of study, the fluid-solid coupled physical and mathematical models were established under the strong cooling condition combining the ventilation and structure characteristics of MPM. The finite element method was used in coupling calculation of 3D fluid field and temperature field. The heat transfer characteristic and winding temperature distribution are analyzed. Using embedded temperature detector method (ETD) to winding insulation test, the distribution of winding insulation of the highest temperature rise has measured, which provides a theoretical basis for optimal design for MPM of UAV.