浅析牵引电动机的故障及处理.doc

PAGE 21 - 毕业设计（论文） 浅析牵引电动机的故障及处理 *** 2018年12月 毕业设计（论文） 浅析牵引电动机的故障及处理 姓名 ： 指导教师 ： 专业 ： 铁道机车（电力机车）专业 学院 ： 铁道机车学院 答 辩 日 期 ： 2018年12月 单位 ： *** 摘 要 - - PAGE II- - - PAGE I- 摘 要 随着列车向高速化方向发展，铁路行车安全的重要性越来越突出。在我国铁路跨越式的大背景下，交流牵引电机作为机车的核心设备之一，它的安全运用关系到整个列车的行车安全，因此对牵引电机的分析和研究是非常有必要的。 交流牵引电机作为为列车提供动力的重要设备，它是为适应列车高速运行而发展起来的先进牵引技术。它以十分优良的特性在德、日、法等经济发达国家迅速发展，很快取代了传统的直流牵引电机。随着交流变频调速技术的日益成熟和广泛使用，可以对交流牵引电机进行平稳和可靠的无极调速，调速范围可达1：:100，比直流调速范围更大，克服了直流牵引电机的许多弊端，交流牵引电机与直流电机相比，它有结构简单、性能可靠、体积小、重量轻的优点，更适合车辆对电机的安装空间与重量等方面的要求，更重要的是交流牵引电机具有功率大、过载能力强、噪声小、调速范围宽、再生制动力巨大、可防止车轮打滑、可靠性高、维护方便、节电等优点，成为现代铁路牵引机车驱动电机的首选产品。 本文对造成牵引电机的主要故障原因进行深入分析和处理，提出在检修运用中相应解决措施，希望能对牵引电机运用的可靠性和安全性起到积极作用。 关键词：交流牵引电机；?故障原因；?处理措施? Abstract 目录 Abstract With the development of high-speed trains, the importance of railway traffic safety is becoming more and more prominent. Under the background of leapfrogging railway in our country, AC drive electric locomotive is one of the core equipment. Its safe operation is related to the safety of the whole train, so it is very necessary to carry out the research on AC traction motor. As an engine driven by vehicles, AC traction motor is an advanced traction technology developed in the 1980s. It has developed rapidly in Germany, Japan, France and other developed countries with remarkable excellent characteristics, and quickly replaced the traditional DC traction motor. With the maturity of AC variable frequency speed regulation technology, AC traction motor can be steadily and reliably stepless speed regulation. The range of speed regulation can reach 1:100, which is larger than DC speed regulation. Especially, there is no DC motor commutator. Therefore, many drawbacks of DC motor can be served by customers. AC traction motor and DC motor can be adjusted steadily and reliably. Comparing with the simple and reliable structure, small size and light weight, the AC traction motor is more suitable for the installation space and weight of the motor. More importantly, the AC tr