基于LABVIEW的开关磁阻电机在线监测系统研究

发布时间：2018-05-11 07:33

本文选题：开关磁阻电机 + 监测参数　；参考：《天津工业大学》2017年硕士论文

【摘要】：开关磁阻电机由于结构简单、成本低廉、起动转矩大、可靠性好、调速范围宽等优点,引起了越来越多的关注,被广泛应用于工业生产和家用电器等领域。为了保障电机的安全运行和对电机控制策略和损耗研究的需要,必须对电机参数进行在线监测。本文实现了对开关磁阻电机的在线监测,所监测的参数包括电机的相电流、母线电压、扭矩、转速。该系统主要由监测参数的获取和处理、数据采集模块以及上位机软件平台三大部分组成。监测参数的获取和处理主要介绍传感器的选型、信号调理电路的设计、DSP控制器对扭矩、转速的捕获计算、过电压、过电流故障停机和信号的抗干扰措施,最后设计出驱动电路、功率电路、D/A转换电路以及系统所需的电源模块。数据采集模块主要叙述PCI-1713板卡的功能以及数据采集原理。上位机软件平台主要通过LabVIEW界面实现对电机参数的在线波形显示,保存以及历史数据回放。系统通过采用LabVIEW图形化界面和数据采集板卡PCI-1713,不仅节省了程序的编写时间,而且其界面友好,精度和实时性都得到大大的提高。实验表明:该系统能够完全满足开关磁阻电机在线参数监测的实际需要,而且其界面友好、测量精度高、稳定可靠,为以后研制更大规模的监控系统迈出了创新性的一步。
[Abstract]:Switched reluctance motor (SRM) has attracted more and more attention due to its simple structure, low cost, large starting torque, good reliability and wide speed range, and has been widely used in industrial production and household appliances. In order to ensure the safe operation of the motor and the need of research on the motor control strategy and loss, the parameters of the motor must be monitored on line. In this paper, the on-line monitoring of switched reluctance motor is realized. The monitoring parameters include phase current, bus voltage, torque and rotational speed of the motor. The system consists of three parts: the acquisition and processing of monitoring parameters, the data acquisition module and the host computer software platform. The acquisition and processing of monitoring parameters mainly introduces the selection of sensor, the design of signal conditioning circuit, the acquisition and calculation of torque, rotational speed by DSP controller, the fault shutdown of overvoltage and overcurrent, and the anti-interference measures of signal. Finally, the driving circuit is designed. Power circuit D / A conversion circuit and the power module required by the system. Data acquisition module mainly describes the function of PCI-1713 card and the principle of data acquisition. The software platform of upper computer can display, save and play back the history data of motor parameters through LabVIEW interface. By using LabVIEW graphical interface and data acquisition board PCI-1713, not only the programming time is saved, but also the interface is friendly, the precision and real time are greatly improved. The experimental results show that the system can fully meet the practical needs of on-line parameter monitoring of switched reluctance motor, and its interface is friendly, the measurement accuracy is high, and the system is stable and reliable. It is an innovative step for the development of a larger monitoring system in the future.
【学位授予单位】：天津工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM352;TP274

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