磁悬浮飞轮储能系统转子支承部件研究

发布时间：2018-04-10 17:03

本文选题：飞轮储能 + 磁力轴承　；参考：《武汉理工大学》2011年硕士论文

【摘要】：飞轮储能技术是一种新型的能量存储技术。飞轮储能系统具有比能量高、比功率大、体积小、充电快、寿命长、无任何废气废料污染等优点。特别是随着真空技术、复合材料技术、磁悬浮技术的发展,使这一新型储能装置的开发和应用成为可能,有着良好的发展前景。飞轮储能的关键技术之一就是其支承技术,飞轮的支承系统不但要能支承飞轮转子,使其可靠稳定的运行,并且需要尽量缩小整个飞轮转子的尺寸、降低由于支承引起的能量损耗。本文就飞轮转子的支承进行探索研究。本文介绍了飞轮储能系统的基本原理与结构,总结了目前国内外飞轮储能技术研究的现状,重点分析了国内外飞轮储能支承的研究成果以及存在的问题。本文设计了一套飞轮储能系统,它包括飞轮储能主体、控制系统和真空装置。重点对其支承进行了设计分析；给出了用于飞轮储能系统的一种支承方案与支承轴承。本文设计的飞轮储能系统采用一个径向电磁轴承和一个轴向-径向复合磁力轴承。重点介绍了轴向-径向复合磁力轴承的结构以及工作原理,采用等效磁路法对磁力轴承的磁路进行了推算,建立了轴向和径向悬浮力的计算公式以及其数学模型；给出了轴向-径向复合磁力轴承的电磁以及永磁结构参数的设计方法。在确定了结构参数的基础上,对磁力轴承的特性进行了分析,包括磁力轴承悬浮力的非线性分析,永磁体对磁力轴承的悬浮力的影响,轴向和径向之间的耦合分析。最后,以全电磁支承的飞轮转子与采用轴向-径向复合磁力轴承的飞轮转子为对象,从质量、储能与转子的动态特性等方面进行了分析对比。
[Abstract]:Flywheel energy storage technology is a new type of energy storage technology.The flywheel energy storage system has the advantages of high specific energy, high specific power, small volume, fast charging, long life, no waste gas pollution and so on.Especially with the development of vacuum technology, composite material technology and magnetic levitation technology, the development and application of this new type of energy storage device is possible, which has a good development prospect.One of the key technologies of flywheel energy storage is its supporting technology. The supporting system of the flywheel should not only support the flywheel rotor and make it run reliably and stably, but also minimize the size of the whole flywheel rotor.Reduce energy loss due to support.In this paper, the bearing of flywheel rotor is studied.This paper introduces the basic principle and structure of flywheel energy storage system, summarizes the present research status of flywheel energy storage technology at home and abroad, and emphatically analyzes the research results and existing problems of flywheel energy storage support at home and abroad.In this paper, a flywheel energy storage system is designed, which includes the main body of flywheel energy storage, control system and vacuum device.The design and analysis of the bearing are emphasized, and a supporting scheme and bearing for the flywheel energy storage system are given.A radial magnetic bearing and an axial-radial composite magnetic bearing are used in the flywheel energy storage system designed in this paper.The structure and working principle of axial radial composite magnetic bearing are introduced emphatically. The magnetic circuit of magnetic bearing is calculated by using equivalent magnetic circuit method. The formula of axial and radial suspension force and its mathematical model are established.The design methods of electromagnetic and permanent magnetic structure parameters of axial-radial composite magnetic bearings are presented.On the basis of determining the structure parameters, the characteristics of magnetic bearing are analyzed, including the nonlinear analysis of the suspension force of magnetic bearing, the influence of permanent magnet on the suspension force of magnetic bearing, and the coupling analysis between axial and radial direction.Finally, taking the flywheel rotor with full electromagnetic support and the flywheel rotor with axial radial composite magnetic bearing as the object, the dynamic characteristics of mass, energy storage and rotor are analyzed and compared.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH133.7

【引证文献】