无人值班变电站电气设备智能监控系统

发布时间：2018-01-21 10:29

本文关键词： 无人值班变电站智能监控系统开发设计试运行　出处：《吉林大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着信息技术的不断发展，为电网的快速发展带来了机遇。对于电网而言，要想提升其运行和管理的效率，必须要依托信息技术建立无人值班变电站和集控站，同时还要求他们具备较高的可靠性和稳定性，只要变电站电气设备存在运行故障，它们能够在第一时间侦测出这些故障并将其排除。一直以来，变电站所使用的故障诊断方法是人工检查，按照一定的周期去巡视和检查变电站设备的运行情况，这种方法不仅效率低，而且安全系数也低。当前，计算机监控系统已经普遍应用于无人值班变电站中，但是它们的主要功能是控制和管理变电站，并未涉及到电气设备故障诊断领域。本文基于此背景，开发设计了一套无人值班变电站电气设备智能监控系统，本文的主要内容可概括为四个方面：首先，简要地论述了变电站主要电气设备常见的故障声音原因分析及处理防范，这些设备包括电力变压器、电力互感器、电容器和GIS设备；其次，分析了监控系统的技术方案，在现场调研的基础上，得到了系统的设计方案和功能设计，系统的功能包括声音信号采集与处理功能、声音信号传输与故障判别功能、建立音频数据库、人机交互功能；再次，进行系统硬件设计和软件设计工作，其中所设计的硬件包括声音信号采集模块、声音处理模块、声音信号传输与故障判别模块、人机交互模块、电源模块、抗干扰模块；所设计的软件部分有：声音采集与实时播放软件、声音压缩与传输软件、声音特征量与频谱分析软件、声音录制与存储软件、通信软件、音频特征数据库；最后，在完成了监控系统的设计工作后，对系统的试运行情况进行了分析，在确定系统总体性能指标的基础上，，完成了系统的现场安装和调试工作，并进行了试运行。旨在通过本文的分析研究，能够设计出一套可靠性较高的智能监控系统，能够及时准确的侦测并解决电气设备运行中的出现的故障，提高无人值班变电站运行效率。
[Abstract]:With the continuous development of information technology, the rapid development of power grid has brought opportunities. In order to improve the efficiency of operation and management, we must rely on information technology to establish unattended substation and centralized control station. They are also required to have high reliability and stability, as long as substation electrical equipment operating failure, they can first detect these failures and eliminate them. Substation fault diagnosis method is manual inspection, according to a certain period to inspect and check the operation of substation equipment, this method is not only low efficiency, but also low safety factor. Computer monitoring systems have been widely used in unattended substations, but their main function is to control and manage substations, which is not involved in the field of electrical equipment fault diagnosis. Based on this background, this paper develops and designs an intelligent monitoring system for electrical equipment in unattended substations. The main contents of this paper can be summarized as four aspects: Firstly, this paper briefly discusses the analysis and prevention of common fault sound causes of main electrical equipment in substation, including power transformer, power transformer, capacitor and GIS equipment. Secondly, the technical scheme of the monitoring system is analyzed. On the basis of field investigation, the design scheme and function design of the system are obtained. The functions of the system include the sound signal acquisition and processing function. Audio signal transmission and fault identification function, the establishment of audio database, man-machine interaction function; Thirdly, the hardware design and software design of the system are carried out. The hardware includes sound signal acquisition module, sound processing module, sound signal transmission and fault identification module, human-computer interaction module. Power supply module, anti-jamming module; The software includes: sound acquisition and real-time playback software, sound compression and transmission software, sound feature and spectrum analysis software, sound recording and storage software, communication software, audio feature database; Finally, after the design of the monitoring system is completed, the trial operation of the system is analyzed. On the basis of determining the overall performance index of the system, the field installation and debugging of the system are completed. A trial operation was carried out. Through the analysis and research of this paper, we can design a set of intelligent monitoring system with high reliability, which can detect and solve the faults in the operation of electrical equipment in a timely and accurate manner. Improve the operational efficiency of unattended substations.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM63;TP277

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