采煤机电气部件安全运行与故障诊断研究

发布时间：2017-12-27 00:36

本文关键词：采煤机电气部件安全运行与故障诊断研究　出处：《华北科技学院》2016年硕士论文　论文类型：学位论文

【摘要】：科技水平的发展推动煤矿的大型化、集约化、现代化进程,同时对采煤机运行稳定性提出了更高的要求。随着采煤机装机功率越来越大、电气控制系统越来越复杂,电气故障极难准确判断和排除,影响煤矿正常生产,造成经济损失,不利于煤炭开采的安全和高产高效,因此,针对采煤机电气部件的故障诊断与安全运行研究,是当务之急,也是发展方向。以采煤机电机为研究对象,首先对课题的研究背景和研究意义进行了说明,对采煤机电气部件安全运行及故障诊断研究现状进行了阐述,分析了制约采煤机电气数据获取的因素,明确需要获取的数据对象,并提出数据获取系统的总体要求。其次,研究总结了在静止坐标系和dq坐标系下的异步电机数学模型,进而推导出一种基于dq坐标系下同时考虑铁损与主磁路饱和的异步电机动态数学模型。对采煤机电机故障类型及故障特征进行分类总结,并在之前建立的动态数学模型基础上对各种典型故障进行动态仿真再次,对采煤机电机电气数据获取系统总体结构设计以及系统的硬件、软件设计。根据系统的总体结构采用模块化思想对系统的硬件和软件分别进行设计,包括传感器模块、网关模块、上位机显示模块的设计。最后,在实验室环境搭建平台对网络的组建、网关数据的转发和上位机界面的显示进行了测试,测试表明方案可行,但辅助功能需进一步完善。
[Abstract]:The development of science and technology promotes the process of large-scale, intensive and modernized coal mine. At the same time, it puts forward higher requirements for the stability of the coal mining machine. With Shearer installed power increasing, the electrical control system is more and more complicated, very difficult to accurately determine the electrical faults and exclusion, affecting the normal production of coal mine, causing economic losses, is not conducive to the safety of coal mining and high yield and high efficiency, therefore, fault diagnosis and safe operation of electrical components, according to the coal mining machine is also a pressing matter of the moment. The direction of development. The motor of the coal mining machine as the research object, firstly the background and significance of the research are described, the electrical parts shearer safe operation and fault diagnosis are described, analyzed the factors restricting access to electrical data mining machine, clear need data object access, and puts forward the overall requirements of the data acquisition system. Secondly, the mathematical models of asynchronous motor in static coordinate system and dq coordinate system are summarized, and a dynamic mathematical model of asynchronous motor based on dq coordinate system considering both iron loss and main magnetic circuit saturation is deduced. And the fault feature of coal mining machine types summarized, based dynamic mathematical model and prior to the establishment of various typical faults on Dynamic Simulation of shearer again, electric data acquisition system structure design and system hardware and software design. According to the overall structure of the system, modularization is applied to design the hardware and software of the system respectively, including sensor module, gateway module and host computer display module. Finally, we set up a platform in the laboratory environment to test the establishment of the network, the forwarding of the gateway data and the display of the host computer interface. The test shows that the scheme is feasible, but the auxiliary function needs further improvement.
【学位授予单位】：华北科技学院
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TD632.1

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