永磁直驱电机驱动力优化

发布时间：2018-01-24 10:01

本文关键词： 永磁直驱电机电机优化磁铁阵列动子结构　出处：《华中科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：电机是利用通电导线在磁场中受到安培力的原理来实现电能向机械能转换的电磁装置,它的主要作用是产生驱动力或力矩,为各种机械或者电器设备提供动力支持。电机驱动力是电机输出最重要参数之一,而怎样提高电机驱动力一直都是电机研究领域的重点。基于这一点,本文从永磁电机动子结构出发,系统的研究了永磁电机动子结构中影响电机驱动力的若干因素,并通过对电机结构上的改进,使电机驱动力达到最大化。本文所研究的是永磁直驱电机的驱动力优化,首先对永磁电机驱动力优化进行原理性分析,通过对电机中的最小永磁-电磁单元以及最小受力单元的研究,选择对电机驱动力影响比较大的因素,如电机材料、动子背轭片尺寸、永磁体阵列为研究对象;然后再通过Maxwell仿真软件的参数化设计功能,对各个研究对象进行系统的仿真,研究它们对电机磁场以及驱动力的影响情况,并得到相应的仿真结论;最后通过对实验室自行设计的动磁式直线电机和双面切直驱电机两个实例进行具体分析,将仿真结论应用到电机结构中,通过搭建实验平台,测量两种电机中的驱动力以及驱动力矩,并与仿真结果对比。通过实验结果与仿真结论的对比,验证了仿真优化中所获得的动子结构尺寸,并在实际情况下提高了永磁直驱电机驱动力。
[Abstract]:The motor is an electromagnetic device which uses the principle that the electrified wire is subjected to ampere-force in the magnetic field to realize the conversion of electric energy to mechanical energy. Its main function is to produce the driving force or torque. The motor driving force is one of the most important parameters of the motor output, and how to improve the motor driving force has always been the focus of motor research. Based on the permanent magnet motor substructure, this paper systematically studies some factors that affect the motor driving force in the permanent magnet electric motor substructure, and through the improvement of the motor structure. To maximize the driving force of the motor. This paper studies the driving force optimization of the permanent magnet direct drive motor. Firstly, the principle analysis of the driving force optimization of the permanent magnet motor is carried out. Through the research of the minimum permanent magnet electromagnetic element and the minimum force element in the motor, the factors which have great influence on the driving force of the motor are selected, such as the material of the motor, the size of the yoke of the actuator, and the permanent magnet array. Then through the parameterized design function of Maxwell simulation software, each research object is simulated systematically, and the influence of them on the magnetic field and driving force of the motor is studied. The corresponding simulation results are obtained. Finally, through the analysis of the two examples of the dynamic magnetic linear motor and the double-side direct drive motor designed by the laboratory, the simulation results are applied to the structure of the motor, and the experimental platform is built. The driving force and driving torque of the two kinds of motors are measured and compared with the simulation results. Through the comparison of the experimental results and the simulation results, the size of the dynamic substructure obtained in the simulation optimization is verified. The driving force of permanent magnet direct drive motor is improved in practice.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM351

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