摘要
PCB (Print Circuit Board，印制电路板)定子盘式永磁同步电机是盘式无铁心电机的一种，有诸如制作简单，效率高，电机功率密度高等优点，定子无铁心实现了电机轻量化的目标，也使得电机转矩波动变小，运行平稳。无铁心盘式电机的电枢绕组多采用树脂浇注，线圈的安装、固定等难度较大，加工精度难以满足要求，有时绕组还可能出现轴向移动。定子采用PCB技术的盘式无铁芯电机较好的解决了这些问题，该种电机转矩脉动小，噪声小，使得电枢绕组的生产制造大大简化，加工精度高，适合批量生产。 本文对PCB定子盘式电机的转子和定子进行了深入研究和分析，首先分析了电机结构和转子的特点以及电机的磁路特点，建立了定子和转子的三维有限元求解模型，并对常见绕组的结构形式和特点进行了对比分析。通过解析模型对电机定转子关键参数进行了分析设计，研究了电机主磁路特点和永磁体的空载工作点，之后对转子磁极的内外径和磁化长度进行了分析设计并选择了电机的极数与极弧系数。 其次，对电机定子绕组进行了优化设计。定子线宽对电机性能有着重要影响，该种电机由于没有齿槽，定子绕组直接面向气隙磁场，会在绕组中产生涡流损耗。本文综合定子绕组涡流损耗，定子电流，铜耗以及目前印制电路板的工艺能力等因素优化设计了PCB定子线宽，不仅减小了绕组涡流损耗，也同时能够满足导通大电流的要求，而且定子铜耗也较小。在优化了线宽之后又对定子绕组端部进行了分析设计，
设计了一种应用于PCB定子电机的改进型绕组，并与传统的PCB 定子绕组进行了对比分析。从空载反电动势、输出功率、效率以及绕组损耗等方面分析了新式PCB绕组的特性和优点。
最后，针对电机的空载和负载情况进行了仿真分析，仿真结果与理论分析的结果具有一致性。此外，本文基于设计与优化的结果制作了样机，以验证仿真分析的正确性，通过电机的空载实验与负载实验可以得到电机实验测试结果和仿真结果比较吻合，说明本文对PCB定子盘式电机的优化设计以及建立的三维有限元分析模型是合理可信的，本文所进行的探究也会对以后的研究者有一定的参考。
关键词：PCB定子盘式电机，印制电路板绕组，有限元法，优化设计，涡流损耗
ABSTRACT
Disc-type permanent magnet synchronous motor with a PCB (Printed Circuit Board) stator, a type of coreless axial fux permanent magnet motor, has the merits of uncomplicated processing, high working efficiency and high power density. This motor with coreless achieves the goal of lightweight, and has the characteristics of small torque ripple and operation stability. The armature winding of coreless disc-type motor is mostly poured with resin, which makes the installation and fixing of the coil more difficult. Machining precision is difficult to meet the demand. Disc-type electric motor with a PCB stator can solve these problems above better. This kind of motor has the strong point in small t
orque ripple and low noise, The armature production is greatly simplified, and it is suitable for mass production.
In this paper, the analysis and design of the rotor and stator of PCB stator disc-type motor are deeply studied. Firstly, the characteristics of the motor structure and the magnetic circuit of the motor are analyzed, and the features on different kinds of common windings also are compared and analyzed. Besides, the 3D finite element solution domain model of stator and rotor is established. The key parameters of the stator and rotor are analyzed and designed by the analytical model while the characteristics of the main magnetic circuit and the no-load working point of the permanent magnet are studied. Then the inner and outer diameter and magnetization length of the rotor are analyzed and designed, and the pole number and the pole arc coefficient of the motor are selected.
Secondly, the motor stator winding is optimized. The stator linewidth has an important influence on the performance of the motor. Because of the PCB stator disc-type motor without the iron core, the winding cannot be placed in the stator slot like the motor with an iron core. Its winding is directly exposed to the magnetic field in the air gap, there would have eddy loss in the winding. Considering the eddy current loss of stator winding, stator current, copper loss and the process capability of PCB, the stator linewidth of PCB is optimized, which not only reduces the eddy current loss, but also meet
s the requirement of large stator current, and the copper loss of the stator is small. The stator ends is analyzed and designed after that. A new type of winding used in PCB stator motor is designed, compared with the traditional PCB stator winding. The characteristics and advantages of the new PCB winding are
analyzed from the aspects of no-load back EMF, output power, efficiency and winding loss.
Finally, the finite element method is used to simulate the motor under no load and load. The simulation results are consistent with the theoretical analysis. In addition, based on the results of design and optimization, the prototype is made to verify the correctness of simulation analysis. The simulation values are in good agreement with the tests data, which shows that the three-dimensional finite element calculation model established in this paper is reasonable, that has a certain reference value for the design of disc-type permanent magnet motor with a PCB stator.
KEY WORDS：PCB stator disc-type motor, PCB winding, Finite Element Analysis, Optimization design, Eddy loss,
温湿度控制系统目录
摘要.............................................................................................................................. I ABSTRACT ............................................................................................................... I II 第1章绪论 (1)
1.1 课题背景及意义 (1)
1.2 国内外发展及研究现状 (2)
1.2.1 盘式电机的发展及研究现状 (2)
1.2.2 PCB定子盘式永磁同步电机的发展及研究现状 (4)
1.3 本文的主要研究内容 (5)
第2章PCB定子盘式永磁同步电机原理和电磁场分析基础 (7)
2.1 盘式永磁电机结构和特点 (7)
单面铜基板
2.2 PCB定子盘式永磁同步电机的结构特点 (9)
2.2.1 PCB定子盘式永磁电机基本结构 (9)
2.2.2 PCB定子盘式永磁电机转子结构和特点 (10)
背心袋生产设备
2.2.3 PCB定子盘式永磁电机定子结构和特点 (11)
2.3 电机电磁场分析的基本方法 (13)
2.4 有限元基本理论 (14)
2.4.1 麦克斯韦方程组 (15)
2.4.2 定解条件 (16)
2.5 基于magnet的PCB定子盘式电机有限元模型 (18)
2.5.1 样机模型求解域的建立 (18)
2.5.2 基于magnet定子和转子有限元模型的建立 (19)
2.6 PCB定子盘式电机磁路特点 (21)
第3章PCB定子盘式电机的分析与设计 (23)
3.1 PCB定子盘式电机主磁路与空载工作点分析 (23)
3.2 PCB定子盘式电机转子磁极的分析设计 (24)
3.2.1 永磁体材料 (24)
3.2.2 永磁体尺寸 (26)
3.2.3 永磁体磁化长度和气隙 (27)
3.2.4 极数和极弧系数 (28)
3.3 PCB定子盘式电机定子绕组关键参数的分析设计 (29)
3.3.1 绕组覆铜厚 (29)
无人机北京天宇创通3.3.2 线宽/线距 (30)
3.3.3 孔径的大小 (30)
3.3.4 板厚 (31)
3.3.5 其他参数 (32)
3.4 霍尔传感器布置分析 (33)
3.4.1 位置传感器 (33)
3.4.2 霍尔IC的放置 (35)
第4章PCB定子盘式电机定子绕组的优化分析 (39)
4.1 PCB定子盘式电机解析分析 (39)
4.1.1 定子绕组系数分析 (39)
4.1.2 定子绕组铜损耗分析 (39)
4.1.3 定子绕组涡流损耗分析 (40)
4.2 PCB定子盘式电机绕组有效导体宽度的优化分析 (40)
4.3 端部优化 (44)
4.3.1 空载仿真分析 (45)
4.3.2 负载仿真分析 (47)
第5章PCB定子永磁电机样机与实验 (51)
5.1 电机本体的制作 (51)
5.1.1 电机定子的制作 (51)
5.1.2 电机转子的制作 (52)
5.2 样机实验 (52)
第6章总结与展望 (55)
6.1 总结 (55)
6.2 展望 (56)
参考文献 (57)eva母
发表论文和参加科研情况说明 (61)
电力网桥
致谢 (63)
