电动汽车用磁阻式旋转变压器的设计研究

发布时间：2018-06-10 14:57

本文选题：磁阻式旋转变压器 + 凸极转子　；参考：《天津大学》2014年硕士论文

【摘要】：随着科学技术不断进步,环境问题越来越突出的影响着人类的生活,节能、环保、高效是对当今一切工业技术提出的新要求。电动汽车由于使用电力这种清洁能源,不排放污染大气的有害气体,并且不需要消耗日渐枯竭的石油资源,成为各国大力推广的新能源车辆。旋转变压器作为角度位置传感器具有稳定可靠、精度高、耐潮湿、耐高温、抗震动等优点,在其基础上发展起来的磁阻式旋转变压器不仅继承了传统旋变的优点,还具有结构简单、体积轻巧和极高的可靠性,最适合作为电动车用永磁电机的位置/速度传感器。以目前情况看来,几乎没有文献对磁阻式旋转变压器的电磁设计程序做出完整的表述,大多研究是针对产生误差的因素进行分析。而且设计中只能尽量避免可能造成误差的因素,实际精度还要受到嵌线工艺和装配精度的影响。针对这些情况,本文首先深入分析了磁阻式旋转变压器的工作原理和电磁特性,并总结出一套磁阻式旋变的设计方法,找到了转子初步设计中关键参数的最佳取值,为今后的设计工作提供了参考和便利,具有重要的工程实践意义。其次,为进一步提高测量精度,对初步设计的磁阻式旋变做了参数优化。在定子设计中加入辅助槽结构,探讨辅助槽数和辅助槽深对削弱气隙中谐波含量的影响;通过反复迭代对比,找到了转子外缘的最佳形状;结合实际情况探讨下线错误时可能的输出结果,并考虑用波绕组的形式代替叠绕组作为激磁线圈的绕线形式,分析两种嵌线工艺各自的利弊。最后,依据本文所述的设计方法自行设计一台三对极旋变,并制成样机进行实验验证。在检验其能够正常工作之后,就实验中出现的不理想情况进行分析对比,说明工程操作也是保证旋变测量精度一个重要因素。
[Abstract]:With the continuous progress of science and technology, environmental problems are becoming more and more important to human life. Energy saving, environmental protection and high efficiency are the new requirements for all industrial technologies. Electric vehicles, because of the use of clean energy, do not discharge harmful gases that pollute the atmosphere, and do not need to depleting the depleted oil resources. The rotating transformer as angle position sensor has the advantages of stable reliability, high precision, high temperature resistance, high temperature resistance and anti vibration. The magnetoresistance rotary transformer, which is developed on the basis of the angle position sensor, not only inherits the advantages of traditional rotation, but also has simple structure, lightweight and extremely high reliability. As the position / speed sensor of permanent magnet motor for electric vehicles, there is little literature on the electromagnetic design program of the magnetoresistance transformer in the present situation. Most of the research is aimed at the analysis of the factors that produce errors. Moreover, we can only avoid the factors that may cause errors and the actual precision in the design. In view of these conditions, the working principle and electromagnetic characteristics of the magnetoresistance rotary transformer are analyzed in this paper, and a design method of the magnetoresistance type rotation is summarized, and the best value of the key parameters in the initial design of the rotor is found, which provides reference for the future design work. Secondly, in order to further improve the precision of the measurement, the parameter optimization of the preliminary designed magnetoresistance is done. The auxiliary slot structure is added to the stator design, and the influence of the number of auxiliary slots and the auxiliary groove depth on the weakening of the harmonic content in the air gap is discussed. The optimum outer edge of the rotor is found through repeated iteration. According to the actual situation, the possible output results are discussed in the light of the actual situation, and the winding form is used to replace the superimposed winding as the winding form of the magnetizing coil, and the advantages and disadvantages of the two lines are analyzed. Finally, a three pair of polar rotation is designed according to the design method described in this paper, and an experimental verification is made to make a prototype. After testing its normal work, the analysis and comparison of the undesirable conditions in the experiment show that the engineering operation is also an important factor to ensure the accuracy of rotation measurement.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM383.2;U469.72

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