基于嵌入式系统的电力光纤信号分析仪软件的设计与实现

发布时间：2018-03-13 11:21

本文选题：IEC61850　切入点：linux　出处：《电子科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：变电站自动化技术经过十多年的发展已经达到一定的水平，近几年来，大量的自动化技术运用到了电网建设和改造中，传统变电站逐步向智能数字化方向发展。IEC61850电力通信标准进一步加快了智能变电站的普及进程，同时也给变电站设备的在线监控技术提出了新的课题。由于变电站结构越来越复杂，，为了能够有效掌握变电站系统的工作状况和网络状况，及时发现变电站中的异常情况，需要专门的仪器对智能设备传输的报文信息进行监测分析，因此开发基于IEC61850标准的电力测试设备有着重要意义。本课题所研究的光纤信号分析仪就是一种电力系统的在线监测设备，它用于分析、记录过程层网络中传输的基于IEC61850标准的采样值报文和GOOSE报文的光纤信号，对网络中的异常情况进行告警，为事故诊断及维护提供了有效的依据。本文的主要工作是对光纤信号分析仪中的采样值解析模块的软件部分进行设计和实现，主要内容包括： 1.对电力光纤信号分析仪的应用背景以及国内外发展现状进行了分析。 2.整体上对IEC61850协议进行了介绍，并对协议中的9-1和9-2协议实现做了详细的分析；对采用的硬件平台进行了介绍，并根据开发需求定制了嵌入式linux系统，搭建了实验环境。 3.根据信号分析仪的采样值解析模块功能进行了软件模块的设计，设计了SCL配置文件的解析、采样值报文的捕获、采样值报文的解码与分析功能模块，实现了原始报文的存储功能，最后对采用的多线程技术进行了介绍。 4.对采样值解析模块的功能进行了测试验证。
[Abstract]:The substation automation technology after more than 10 years of development has reached a certain level, in recent years, a large number of automation technology applied to power grid construction and transformation, and gradually to the traditional substation intelligent digital direction.IEC61850 power communication standard and further accelerate the popularization of intelligent substation, but also put forward a new topic for online monitoring the technology of substation equipment.
The substation structure becomes more and more complex, in order to effectively control the working conditions of the substation and network status, to detect anomalies in the substation, monitoring and analyzing the need for specialized instruments for intelligent equipment transmission of the message, so the development of electrical testing equipment based on IEC61850 standard is of great significance. The fiber-optic signal analyzer on-line monitoring equipment research is a kind of power system, it is used to analyze, record the process layer network transmission based on optical fiber signal sampling value message and GOOSE message IEC61850 standard, alarm of network anomalies, provide an effective basis for accident diagnosis and maintenance.
The main work of this paper is to design and implement the software part of the sampling value analysis module in the optical fiber signal analyzer. The main contents are as follows:
1. the application background of the power fiber signal analyzer and the development status at home and abroad are analyzed.
2., the IEC61850 protocol is introduced on the whole, and the implementation of the 9-1 and 9-2 protocols in the protocol is analyzed in detail. The hardware platform is introduced, and the embedded Linux system is customized according to the development requirement, and the experimental environment is built.
3. according to the sampling signal analyzer value analysis module function of the software module design, the design of parsing the SCL file, the sampling value message acquisition, sampling module decoding and analysis function of the message, the storage function of the original message, at the end of the multi thread technology are introduced.
4. the function of the sampling value analysis module is tested and verified.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TM76

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