混合式磁悬浮电机结构设计及其径向控制驱动研究
发布时间：2018-09-09 15:02
【摘要】：随着当代文明社会的发展,电机早已成了提升生产力,改善人民生活质量的主要生产工具之一。磁悬浮电机的出现很好的解决了在转子旋转过程中出现的轴承磨损而导致轴承寿命降低、以及产生的机械振动和噪声的问题。而混合式磁悬浮电机又以其采用的永磁体转子结构减小了相对于传统磁悬浮电机的空间尺寸,在提高电机的转换效率同时,又降低了功放的损耗。然而在进一步减小磁悬浮电机的电机尺寸,优化结构方面,只能对混合式磁悬浮电机的定子结构入手,这里通过使用单套线圈绕组的方法,既用来驱动转子轴的转动,又用来驱动转子轴的悬浮。具体为采用三套独立分布的绕组,控制转子三个方向的悬浮,同时三套绕组可以共同作用组成一个旋转的磁场驱动电机旋转,这样就可以在定子上进一步减小电机的尺寸。本文对混合式磁悬浮电机进行了结构设计与电机径向控制驱动的研究,对其结构设计参照了传统的电机设计,对混合式磁悬浮电机的径向控制驱动的开发主要从控制驱动电路和软件程序入手。具体工作包括如下几个部分:对混合式磁悬浮电机构造和运作原理进行了简单介绍,分析了混合式磁悬浮电机的电磁机理,运用虚位移原理,建立混合式磁悬浮电机径向悬浮力方程。对混合式磁悬浮电机的结构设计,主要分为径向悬浮电机定、转子结构参数确定,轴向悬浮用电机定、转子结构和电磁铁参数。利用Ansoft电磁场有限元分析软件对感应磁场进行分析,得出主要部件磁场分布情况以及磁悬浮力与位移、其他控制参数的变化关系。基于对混合式磁悬浮电机的结构设计的基础上,对其径向控制驱动硬件进行设计,主要分为基于SVPWM技术的电机旋转驱动硬件设计、基于全桥功放的悬浮硬件设计。随后对软件控制流程做了简要说明。搭建混合式磁悬浮电机相关的实验平台,进行相关实验分析,实验结果基本符合预定要求。
[Abstract]:With the development of modern civil society, motor has already become one of the main production tools to enhance productivity and improve people's quality of life. The appearance of maglev motor has solved the problems of bearing wear during rotor rotation, which leads to the decrease of bearing life, mechanical vibration and noise. The hybrid maglev motor reduces the space size compared with the traditional maglev motor because of its permanent magnet rotor structure, which not only improves the efficiency of the motor conversion, but also reduces the loss of power amplifier. However, in order to further reduce the size of the motor and optimize the structure of the maglev motor, the stator structure of the hybrid maglev motor can only be started with the method of single coil winding, which is used to drive the rotation of the rotor shaft. It is also used to drive the suspension of the rotor shaft. In particular, three sets of independent distributed windings are used to control the suspension of the rotor in three directions. At the same time, the three sets of windings can work together to form a rotating magnetic field to drive the motor rotation, which can further reduce the size of the motor on the stator. In this paper, the structure design and radial control drive of hybrid maglev motor are studied. The structure design of hybrid maglev motor is based on the traditional motor design. The development of radial control drive of hybrid maglev motor mainly starts with control drive circuit and software program. The specific work includes the following parts: the structure and operation principle of hybrid maglev motor are introduced, the electromagnetic mechanism of hybrid maglev motor is analyzed, and the principle of virtual displacement is used. The radial suspension force equation of hybrid maglev motor is established. The structure design of hybrid maglev motor is mainly divided into radial suspension motor stator rotor structure parameter determination axial suspension motor stator rotor structure and electromagnet parameters. The magnetic field distribution of the main components and the relationship between the magnetic suspension force and displacement and other control parameters are obtained by using the Ansoft electromagnetic field finite element analysis software. Based on the structure design of hybrid maglev motor, the radial control drive hardware is designed, which is mainly divided into two parts: motor rotation drive hardware design based on SVPWM technology and suspension hardware design based on full-bridge power amplifier. Then the software control flow is briefly explained. The related experimental platform of hybrid maglev motor is built and the experimental results are basically in accordance with the scheduled requirements.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM302
[Abstract]:With the development of modern civil society, motor has already become one of the main production tools to enhance productivity and improve people's quality of life. The appearance of maglev motor has solved the problems of bearing wear during rotor rotation, which leads to the decrease of bearing life, mechanical vibration and noise. The hybrid maglev motor reduces the space size compared with the traditional maglev motor because of its permanent magnet rotor structure, which not only improves the efficiency of the motor conversion, but also reduces the loss of power amplifier. However, in order to further reduce the size of the motor and optimize the structure of the maglev motor, the stator structure of the hybrid maglev motor can only be started with the method of single coil winding, which is used to drive the rotation of the rotor shaft. It is also used to drive the suspension of the rotor shaft. In particular, three sets of independent distributed windings are used to control the suspension of the rotor in three directions. At the same time, the three sets of windings can work together to form a rotating magnetic field to drive the motor rotation, which can further reduce the size of the motor on the stator. In this paper, the structure design and radial control drive of hybrid maglev motor are studied. The structure design of hybrid maglev motor is based on the traditional motor design. The development of radial control drive of hybrid maglev motor mainly starts with control drive circuit and software program. The specific work includes the following parts: the structure and operation principle of hybrid maglev motor are introduced, the electromagnetic mechanism of hybrid maglev motor is analyzed, and the principle of virtual displacement is used. The radial suspension force equation of hybrid maglev motor is established. The structure design of hybrid maglev motor is mainly divided into radial suspension motor stator rotor structure parameter determination axial suspension motor stator rotor structure and electromagnet parameters. The magnetic field distribution of the main components and the relationship between the magnetic suspension force and displacement and other control parameters are obtained by using the Ansoft electromagnetic field finite element analysis software. Based on the structure design of hybrid maglev motor, the radial control drive hardware is designed, which is mainly divided into two parts: motor rotation drive hardware design based on SVPWM technology and suspension hardware design based on full-bridge power amplifier. Then the software control flow is briefly explained. The related experimental platform of hybrid maglev motor is built and the experimental results are basically in accordance with the scheduled requirements.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM302
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