船用一体化泵永磁电机设计与研究  

Design and Analysis of Permanent Magnet Motor for Marine Integrated Pump

作　　者：蒋超 乔鸣忠[1] 彭威[1] JIANG Chao;QIAO Mingzhong;PENG Wei(College of Electric Engineering,Naval University of Engineering,Wuhan 430033,Hubei,China)

机构地区：[1]海军工程大学电气工程学院,湖北武汉430033

出　　处：《电气传动》2021年第16期3-9,共7页Electric Drive

基　　金：国家自然科学基金资助项目(51877212)。

摘　　要：根据船舶水泵系统对电机体积和噪声的特殊要求,设计了船用泵自启动永磁电机。采用时步有限元法对所设计电机的启动和稳态性能进行了计算,分析了驱动负载类型、系统转动惯量对启动时间的影响,以及极弧系数对稳态转矩脉动的影响,并与异步电机进行了稳态效率对比。实验验证了计算模型的准确性,结果显示驱动水泵类负载时自启动永磁电机启动时间更短,启动时间随系统转动惯量增大相应延长,降低气隙磁密5,7次谐波含量有利于减小稳态转矩脉动,稳态运行时启动笼铜耗不可忽略,启动笼下置式自启动永磁电机在保证启动性能的前提下具有更优的稳态性能,更适合配套船舶水泵。According to the special requirements of the ship pump system for the volume and noise of the motor,the marine pump self-starting motor was designed and manufactured.Time-stepping finite element method(FEM)was used to calculate the starting and steady-state performance.The influence of the load type and inertia of the system on the starting time,and polar arc coefficient on the torque pulsation were analyzed.The motor steady state efficiency was compared with that of the asynchronous motor.The experiment verifies the accuracy of the calculation model.The results indicate that the starting time of self-starting permanent magnet moter is shorter when driving water pump load.The starting time is increased with the inertia of system increasing.The reduction of the 5 and 7 harmonics content of air gap flux density is beneficial to reduce the steady state torque ripple of the self starting permanent magnet motor.The copper loss of the starting cage during steady state operation cannot be ignored.The self-starting permanent magnet motor that the starting cage is under the permanent magnet,has better steady state performance under the premise of ensuring starting performance and is more suitable for supporting marine pump.

关 键 词：永磁电机 船舶水泵 时步有限元法 启动性能 稳态性能 

分 类 号：TM351[电气工程—电机]