부산대학교 도서관

The investigation presented in this paper aimed to analyze the temperature dependences of induction machine parameters. More specifically, the focus was placed on the temperature behavior of magnetic properties. The machine under test is a 100kW traction motor used in standard railway applications. Knowledge of parameters temperature dependences is necessary to ensure precise operation of the induction machine over a wide temperature range. Therefore, measurements for different stator and rotor temperatures of the machine were conducted, which revealed that the permeability of the stator and rotor side electrical steel sheet show a clear temperature dependence. Moreover, a reduction of flux density due to increasing temperature was determined. The purpose of these results is to improve the accuracy of stator or rotor equation-based flux models.