交错磁极混合励磁同步发电机冷却系统设计与温度场计算  

Design of Cooling System and Temperature Field Calculation for Staggered Pole Hybrid Excitation Synchronous Generator

作　　者：赵浩然 吴胜男 ZHAO Haoran;WU Shengnan(School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《微特电机》2024年第6期8-12,16,共6页Small & Special Electrical Machines

摘　　要：为了进一步降低电机性能受温升限制的影响,对一台交错磁极混合励磁同发步电机提出了机壳水冷和环形水冷盘相结合的冷却系统。基于计算流体力学(CFD)和传热学理论,建立三维流体场和温度场模型,分析在相同进水流量下单水道、双水道及加入扰流片三种水冷盘的散热性能,对水冷盘壁厚及相邻扰流片间的夹角进行了优化。对优化后的冷却方案进行温度场仿真,得到电机各个部件的温升。仿真结果表明,与传统的机壳螺旋水道结构相比,加入水冷盘结构能够有效降低发电机各部分温升,提高发电机的冷却散热能力。In order to further reduce the impact of motor performance limited by temperature rise,a cooling system combining casing water cooling and annular water cooling disc was proposed for a staggered pole hybrid excitation synchronous generator.Based on the theory of computational fluid dynamics(CFD)and heat transfer,a three-dimensional fluid field and temperature field model was established to analyse the heat dissipation performance of the three water-cooling discs,namely,single water channel,double water channel and adding spoiler,under the same inlet flow rate,and the wall thickness of the water-cooling discs and the angle between adjacent spoiler were optimised.The temperature field simulation of the optimised cooling scheme was carried out to obtain the temperature rise of each component of the motor.Compared with the traditional casing spiral waterway structure,the simulation results show that the addition of the water-cooling disc structure can effectively reduce the temperature rise of each part of the generator and improve the cooling and heat dissipation capacity of the generator.

关 键 词：混合励磁同步发电机 流体场 温度场 计算流体力学 

分 类 号：TM351[电气工程—电机]