摘要
永磁同步电机具有功率密度高、效率高、结构简单的优点,适用于船舶电力系统。针对一台船用永磁同步发电机,首先计算其定子和转子的损耗,作为温度场计算的热源;然后建立三维有限元模型,对电机水套进行温度场计算,采用流体计算软件FLUENT计算得到等效散热系数进行温度场耦合,从而计算电机本体温度场分布。通过对不同水套流速下的电机温度场的分析对比,给出了冷却系统的设计要求。
Permanent magnet generator is applied to marine power system due to its merits such as high-power density,high efficiency and simple structure. In this paper,the stator and rotor loss of a marine permanent magnet generator is calculatedas the heat source,and then its 3-D finite element model is built to calculate the temperature distribution of the water chamber.The equivalent heat release coefficient is obtained by means of liquid calculation software FLUENT to carried out temperaturefield coupling,so as to calculate the temperature distribution of the generator. A design requirement of the cooling system ismade by comparing and analyzing the temperature fields of the generator at different velocity of cooling water.
出处
《现代电子技术》
北大核心
2015年第4期8-12,共5页
Modern Electronics Technique
基金
国家"973"计划资助项目(2011GB113005)
关键词
船舶永磁同步发电机
高功率密度
损耗计算
温度场计算
marine permanent magnet generator
high power density
loss calculation
temperature field calculation
