【作者】 郭秀英；

【导师】 赵伟民；

【作者基本信息】 大庆石油学院 ， 动力机械及工程， 2010， 硕士

【摘要】 永磁同步电动机具有结构简单、体积小、重量轻、效率高、功率因数高等优点。从70年代末开始,得到了从事电机及其驱动系统研究的学者和研究人员的广泛重视。经过努力,其硬件设计和控制方式在近二十年内得到了大力发展,商用化的产品也己经进入到工业生产等各个领域。我国油田采油成本高,油田抽油机电机数量多、容量大、年运行时间长、耗电量大。国内外对抽油机电机的节能都很重视,研发新型永磁同步电动机取代传统异步电动机是科研工作者的期望。针对目前油田中异步电机存在着“大马拉小车”的状况,本文提出了低速大扭矩永磁电机直驱的节能方案。首先对国内永磁同步电动机的发展现状进行调研。在了解了永磁同步电动机的特点及应用的基础上,研究了永磁电机动力特性,提出了外转子的方案设计与结构参数并对关键零部件的机械强度进行了分析。对低速大扭矩永磁同步电机进行了详细的计算,并设计了运行与控制回路。低速大扭矩永磁同步电动机由于没有高速转动部分,取消了后置齿轮传动,简化了传动机构,提高了整个装置的精度和可靠性,消除了由于齿轮传动引起的噪声和振动,因此这种电机的优越性能引起了科研、生产和使用单位的关注。可以预见,随着永磁材料和电动机制造价格的降低,相应电力电子器件及高速微处理器的开发,驱动系统理论研究和实践应用的不断完善和提高,永磁同步电动机及其驱动系统将会得到进一步的发展和应用,将逐渐取代现有的普通电励磁电机及其驱动系统。更多还原

【Abstract】 The permanent magnet synchronous motor has simple structure, small volume, light weight, high efficiency and power factor. Since the 1970s, it has engaged in the research of the motor and drive system of the scholars and researchers. Through efforts, after nearly 20 years, hardware design and control on developing, the product is commercial applications into industrial production fields.China has the high cost of oil pipeline, oil pumping unit number, large capacity motor, power. The motor of pumping and energy are very seriously, a new generation of permanent magnet synchronous motor is present to replace traditional asynchronous motor of the best choice.This paper is mainly aiming at the existed in the field induction"big horse-drawn small carts", puts forward low torque permanent magnet motor energy saving solutions. First, permanent magnet synchronous motor development of domestic situation of investigation. Secondly, in the understanding of permanent magnet synchronous motor characteristics and application, and on the basis of the research dynamic characteristics of permanent magnet motor, and puts forward the design and the structural parameters of key parts and the mechanical strength are analyzed.last, low torque of permanent magnet synchronous motor makes a detailed calculation, the operation and control circuit design.This kind of motor speed rotating parts, because cancelled gear transmission, simplify the transmission mechanism, improving the accuracy and reliability of equipment, eliminates because of gear noise and vibration, so the study of motor caused a scientific research, the production and use of units of the note.with the permanent magnet material and motor manufacturing prices lower, Corresponding power electronic devices and high-speed development of microprocessors, drive system theory and practice and improving continuously, the permanent magnet synchronous motor and its drive system will be further development and application, in certain situations will gradually replace the existing ordinary excitation motor and the drive system.更多还原