The structure of air-cooled 20MW synchronous motor is compact, whether the ventilation system is designed reasonable or not greatly impacts the temperatures of stator, rotor and end part of the electric machines. In this paper, the temperature rise in each part is studied with the method of air paths and temperature distribution. By simulation analyzing to the air paths and heat generation parts, the affect of ventilation and the temperature rise of major part are provided.%空冷20MW同步电动机的结构紧凑,通风系统的设计合理与否对电机定子、转子以及端部件温度有显著的影响.本文采用风路与温度相结合的方法,研究电机各部分温升问题.通过对风路和电机各部分发热元件的仿真分析,得出了电动机的通风效果和主要部分的温升情况.
展开▼
