Calculation and analysis of stator temperature for high voltage generator prototype with rated load

High voltage generator is a new type of generator. In order to determine if the innovational structure of high voltage generator can satisfy the requirement of high voltage generator with rated load, the temperature of the high voltage generator is analyzed and calculated. The electromagnetic of high voltage generator is analyzed with FEM, and the 2D model of electromagnetic field is proposed to calculate the loss of high voltage generator. According to the basic laws of heat transfer and the differential equation of heat conduction and its boundary conditions, 3D physical model of temperature for high voltage generator is established. According to the theory of fluid similarity, heat release coefficient of every part in stator is derived; the temperature field distribution of stator is obtained. Then, the correctness of the analysis is proved by the experiment. The conclusion of this paper provides certain theoretical significance and practical value for the reliable design and operation of high voltage generator.