大功率潜水电机冷却系统分析方法与试验研究  

Analysis Method and Experimental Research on Cooling System of High Power Submersible Motor

作　　者：张琦 李增亮[1] 董祥伟[1] 刘延鑫[1] 王雨婷 ZHANG Qi;LI Zengliang;DONG Xiangwei;LIU Yanxin;WANG Yuting(College of Mechanical Electronic Engineering,China University of Petroleum,Qingdao,Shandong,266580;CNPC Offshore Engineering(Qingdao) Company Limited,Qingdao,Shandong,266580)

机构地区：[1]中国石油大学(华东)机电工程学院,青岛266580 [2]中国石油海洋工程有限公司青岛分公司,青岛266580

出　　处：《中国机械工程》2021年第3期368-377,共10页China Mechanical Engineering

基　　金：工业和信息化部高技术船舶科研项目(2014020024)。

摘　　要：为了研究大功率潜水电机的温度分布规律,以580 kW潜水电机为例进行分析。依据工作条件建立温度场计算模型,实现流固耦合自动传热并可模拟内外冷却介质的流动;以定转子铁耗定值、油摩损耗和铜耗变量作为热源施加方式,基于冷却系统参数影响关系得到温度场与流场间双向耦合关系,由此提出一种冷却系统分析方法;采用该方法研究冷却系统结构参数影响规律,并对比不同叶轮工作特性下冷却系统计算结果以得到最优叶轮参数。室内空载试验和海边负载试验结果表明:铁耗和温度的试验值与仿真值间相对误差在5%以内,所设计冷却系统在不同负载下可稳定运行。In order to study the temperature distribution of high power submersible motors,a 580 kW submersible motor was calculated.The temperature field calculation model was established according to the working conditions.The automatic heat transfer was realized through configuring the fluid-structure interaction and the flows of internal and external cooling medium were simulated.The fixed values of iron loss of stator and rotor,the variable of oil friction loss and copper loss were used as heat source.Based on the influences of cooling system parameters,the bidirectional coupling relationship between temperature field and flow field was obtained.A cooling system analysis method was proposed.The proposed method was used to study the influence laws of cooling system structural parameters on temperature distribution.The optimal impeller parameters were obtained by comparing the cooling system calculation results under different impeller working characteristics.Finally,through the indoor no-load test and sea load test,the results show that the relative errors between test values and simulation ones of iron loss and temperature are less than 5%.The designed cooling system may operate stably under different loads.

关 键 词：大功率潜水电机 冷却系统 热源分析 双向耦合 优化设计 

分 类 号：TM343[电气工程—电机]