电工技术学报  2015, Vol. 30 Issue (14): 94-99    DOI:
电机与电器 |
舵机用永磁同步电机的设计与温度场分析
陈益广1,郑军1,魏娟2,郑再平2,郭喜彬2
1.天津大学智能电网教育部重点实验室 天津 300072;
2.北京精密机电控制设备研究所 北京 100076
Design of PMSM for Actuator and Its Temperature Field Analysis
Chen Yiguang1,Zheng Jun1,Wei Juan2,Zheng Zaiping2,Guo Xibin2
1. Key Laboratory of Smart Grid of Ministry of Education Tianjin University Tianjin 300072 China;
2. Beijing Research Institute of Precise Mechanical and Electronic Control Equipment Beijing 100076 China
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摘要 针对舵机用大功率永磁同步电机转动惯量低、功率密度高、短时工作制的特点,对定子绕组形式和槽极数配合做了较为合理的选择,确定了电机基本尺寸。电机电磁场有限元分析结果表明,电机具有较高的电气性能。由于电机功率密度高,电磁有效部位细长,电机转速较高,电机温升问题突出。根据传热学理论,建立了永磁同步电机三维瞬态温度场求解模型,确定了表面散热系数。通过有限元分析得到了电机定子绕组铜耗、定子铁心铁耗以及永磁体和转子护套内的涡流损耗。将定子槽内和端部处导线分别等效成若干个导热体、分布排列,得到了更加符合实际情况的电机三维瞬态温度分布结果。试验结果表明设计方案合理。
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陈益广
郑军
魏娟
郑再平
郭喜彬
关键词 永磁同步电机低转动惯量有限元法损耗三维温度场    
Abstract:According to high power permanent magnet synchronous motor(PMSM) characteristics of low rotational inertia, high power density and short-time duty type, the paper presents reasonable selection of stator winding forms and coordination of slots and poles, and determines the basic size of motor. The motor shows high electrical performance with finite element analysis of the electromagnetic field. Temperature rise of the motor is serious due to its high power density, slender electromagnetic effective fraction and high rotational speed. On the basis of heat transfer theory, the solving model of 3D transient temperature field for PMSM is established and surface heat transfer coefficients are given. Stator winding copper loss, stator core iron loss, permanent magnet eddy loss and eddy loss in the rotor sheath are obtained by finite element analysis. Wire in stator slot and end region is equivalent into several heat conductors which distributed and arranged respectively, and more reliable 3D transient temperature distribution is obtained. Experimental results show that the design of motor is reasonable.
Key wordsPMSM    low rotational inertial    finite element method    loss    3D temperature field   
收稿日期: 2014-08-10      出版日期: 2015-09-08
PACS: TM315  
作者简介: 陈益广 男,1963年生,博士,教授,博士生导师,主要研究方为电机设计及其控制。郑 军 男,1988年生,硕士研究生,主要研究方为电机设计及其控制。
引用本文:   
陈益广,郑军,魏娟,郑再平,郭喜彬. 舵机用永磁同步电机的设计与温度场分析[J]. 电工技术学报, 2015, 30(14): 94-99. Chen Yiguang,Zheng Jun,Wei Juan,Zheng Zaiping,Guo Xibin. Design of PMSM for Actuator and Its Temperature Field Analysis. Transactions of China Electrotechnical Society, 2015, 30(14): 94-99.
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