中小型异步电动机故障诊断系统的设计与开发

发布时间：2018-03-12 12:48

本文选题：信息管理系统　切入点：异步电动机　出处：《天津大学》2016年硕士论文　论文类型：学位论文

【摘要】：异步电动机在企业生产中的高性价比、在生产过程的安全程度以及长时间投入使用积累的成熟的运行维修经验,已经得到全世界各行各业的专家和管理者的认可,很多国家都投入大量的技术和资金在异步电动机的开发和研发中。其额定功率范围和额定电压功率范围和设计范围也可上下调整千倍不等,因此在工农业、国防、交通、电力等从国家到百姓的日常生活中都可以大量使用异步电动机。近年来,各地的研究机构和企业对大功率电力电子技术的研发和应用日益成熟,异步电动机也开始采用该技术,在一些使用中大功率、高性能、变频的行业中得到重视和使用。异步电动机虽然在应用技术上已经比较成熟,但运营故障的发生是无法避免的,这会直接影响到人民生活、行业乃至国家生产无法正常进行,企业中的电动机发生故障,会破坏自身结构,也可能会导致企业的生产停止,造成不可避免的经济损失;运营在国防等特殊领域异步电动机一旦发生故障,极端情况下甚至会危及国家安全。除了本身使用寿命有限以外,电动机结构设计不合理构造,工作环境、天气气候的变换影响,或者是技术员或操作工的不合理操作或工作失误,也会直接导致电动机发生故障。本文介绍了异步电动机的故障类型,并重点分析了检测原理,阐述了学术界比较认可的故障检测算法,研发了一款额定电压二百二十伏/三百六十伏、额定功率小于二百二十千瓦以下的中小型异步电动机的故障检测装置。该系统采用USB7646B数据采集装置进行电机数据信号的采集和获取,后传输至上位机进行存储、管理、分析、判定与告警。该装置运用电机电流信号分析技术,能够完成异步电动机定子绕组故障、转子断条、气隙偏心等故障检测,对异步电动机故障检测技术进一步研发具有意义。
[Abstract]:The high performance-price ratio of asynchronous motors in the production of enterprises, the safety degree of production process and the mature operation and maintenance experience accumulated for a long time have been recognized by experts and managers in various industries all over the world. Many countries have invested a large amount of technology and funds in the development and development of asynchronous motors. Their rated power range and rated voltage power range and design range can also vary by 1,000 times, so they can be used in industry and agriculture, national defense, and transportation. Asynchronous motors can be used extensively in the daily life of the country and the people. In recent years, the research and development and application of high-power power electronics technology have become increasingly mature in various research institutions and enterprises, and asynchronous motors have also begun to adopt this technology. In some industries that use medium and high power, high performance and frequency conversion, they have been paid attention to and used. Although the application technology of asynchronous motors is already relatively mature, the occurrence of operational failures cannot be avoided, which will directly affect people's lives. The industry and even the national production can not carry on normally, the electric motor in the enterprise will break down the structure, may also cause the production of the enterprise to stop, resulting in the inevitable economic loss; Once the asynchronous motor in special fields such as national defense breaks down, it will even endanger the national security in extreme circumstances. In addition to its limited service life, the structure of the motor is not reasonably constructed and the working environment is not reasonable. The influence of weather and climate change, or the unreasonable operation or fault of technician or operator, will also lead to the fault of motor directly. This paper introduces the fault type of asynchronous motor, and analyzes the principle of detection. This paper expounds the fault detection algorithm approved by academic circles, and develops a rated voltage of 220 volts / 360 volts. A fault detection device for a small and medium-sized asynchronous motor with rated power less than 220 kilowatts. The system uses a USB7646B data acquisition device to collect and obtain motor data signals, which are then transmitted to the upper computer for storage, management, and analysis. The device can detect stator winding faults, rotor bar breakage and air gap eccentricity by using motor current signal analysis technology, which is of significance for further research and development of asynchronous motor fault detection technology.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP311.52;TM343

【相似文献】