智能变电中的继电保护故障应对策略分析
摘要
随着全球能源结构的转型和智能电网的快速发展，智能变电技术作为智能电网建设的关键环节，正逐步成为电力行业的研究热点。智能变电技术通过集成先进的传感器、通信、控制及计算机技术，实现了对变电站运行状态的实时监测、精确控制和智能决策，极大地提升了电力系统的自动化水平和运行效率。本文首先概述了智能变电技术的定义与发展历程，并详细阐述了智能变电系统的基本组成。对继电保护的基本原理与主要功能进行了介绍，为后续研究奠定了基础。在此基础上，本文深入分析了智能变电中继电保护的特点，包括智能化技术融合、信息共享与交互、自适应与在线监测等。针对智能变电中继电保护的主要故障，如电流互感饱和故障、电气连接故障、继电保护设备本身故障及通讯故障等，进行了详细剖析。最后，本文提出了多种有效的应对策略，包括增加电流互感器的额定容量、加强电气连接的检查与维护、选用高质量的继电保护设备以及采用高效的数据传输技术等，旨在提升智能变电中继电保护系统的性能和可靠性，确保电网的安全稳定运行。
关键词：智能变电；继电保护；故障分析
Abstract
With the transformation of global energy structure and the rapid development of smart grid, intelligent substation technology, as a key link of smart grid construction, is gradually becoming a research hotspot in the power industry. Through the integration of advanced sensors, communication, control and computer technology, the intelligent substation technology realizes the real-time monitoring, accurate control and intelligent decision-making of the operation state of the substation, and greatly improves the automation level and operation efficiency of the power system. This paper first summarizes the definition and development process of intelligent substation technology, and expounds the basic composition of intelligent substation system in detail. The basic principles and main functions of relay protection are introduced to laying a foundation for subsequent research. On this basis, this paper deeply analyzes the characteristics of intelligent substation relay protection, including intelligent technology fusion, information sharing and interaction, self-adaptation and online monitoring, etc. In view of the main faults of intelligent substation relay protection, such as current mutual sense saturation fault, electrical connection fault, relay protection equipment itself fault and communication fault, it is analyzed in detail. Finally, this paper puts forward a variety of effective strategies, including increasing the rated capacity of current transformer, strengthen the inspection and maintenance of electrical connection, choose high quality relay protection equipment and the efficient data transmission technology, aims to improve the performance and reliability of intelligent substation relay protection system, to ensure the safe and stable operation of the power grid.
Keywords： Intelligent power transformation; relay protection; fault analysis
目 录
摘要 I
Abstract II
一、绪论 1
（一）研究背景及意义 1
（二）国内外研究现状 1
（三）研究目的和内容 2
二、智能变电与继电保护基础 3
（一）智能变电技术概述 3
（二）继电保护的基本原理与功能 3
三、智能变电中的继电保护特点 5
（一）智能化技术融合 5
（二）信息共享与交互 5
（三）自适应与在线监测 5
四、智能变电中继电保护的主要故障分析 7
（一）电流互感饱和故障 7
（二）电气连接故障 7
（三）继电保护设备本身故障 7
（四）通讯故障 8
五、能变电中继电保护故障的应对策略 9
（一）增加电流互感器的额定容量 9
（二）加强电气连接的检查与维护 9
（三）选用高质量的继电保护设备 9
（四）采用高效的数据传输技术 10
结 论 11
参考文献 12
