文档介绍：摘 要
现如今智能站飞速的发展在国内大面积推广建设,为智能站继电保护装置进行调试的工作量巨大。在智能变电站的现场测试中往往会因为设备配置或测试装置问题影响测试进度造成延误,影响智能站的建设与使用。因此,为了提高调试工作的效率、加速工程进度并减轻测试人员工作负担研制新的针对智能站的自动化继电保护测试仪有着重要的意义。
首先对市场中现有测试仪进行了分析。基于目前测试仪在工程中的应用,从现场调试操作、设备测试模型建立、自动化测试流程及报告生成提出了新测试仪的设计要求和目的。通过深入研究 IEC 61850- 规约的采样传输服务原理以及通用面向对象的变电站事件 GOOSE 的原理及功能,提出了满足要求的硬件架构,为自动化继电保护测试仪的研制开发奠定的基础。
在测试仪测试环节对保护工作原理进行研究,并以距离保护为例,详细分析了现场调试中继电保护测试仪对保护装置测试的方式和过程。为了简化测试流程结合 IEC 61850 规约与国家电网“六统一”标准提出了基于继电保护国网“六统一”的继电保护测试仪自动配置方法。为实现该方法建立了“六统一”标准下的测试用资料库收录了测试项所需配置参数描述用于自动配置。
通过结合基于继电保护国网“六统一”的继电保护测试仪自动配置方法,对测试仪自动测试方案进行了完善。从自动配置到自动建模到自动测试再到自动生成结果实现了真正意义上的自动化。最终在攀枝花智能变电站,从工程的角度对其进行了现场的检验,验证了自动化继电保护测试的可行性,达到了预期结果。
关键词:继电保护,智能测试仪,国网“六统一”标准,自动测试
ABSTRACT
In the development of the substation automatic, the important part of the automation system, relay constantly engaged in innovation. Since the rise of electronic transformers, the development munication technology and the popularize of munication standard driving the relay evolution toward digital direction. As the vital part, the digital intelligent relay test should keep up with the development too.
The last stage, on testing technology for intelligent substation protection devices, testers gradually e a hot research. But for various reasons, it shows the current study is prehensive enough, nor deep. Precisely because of this, this article is based on the characteristics of intelligent substation protection device and the current
situation, from research of the state grid’s "six unified" standards, IEC 61850
communication protocol and automated test, proposed improvement plan and carried out the appropriate verification.
This article is concerned on the implementation of digital testing device for relays based on the IEC 61850 the beginning,it focus on the history and
evolution of substation automation system.
And then refers to the creation of IEC 61850 . Also , the features munication principle of IEC 61850. It follows a discussion about the principle of
sampling valu