特高压线路保护的研究

论文总字数：17020字

摘 要

随着我国特高压电路技术的迅速发展和日趋成熟，特高压直流输电技术以其显著的经济效益，逐渐成为解决高电压、大容量、远距离动力传输和电网互联等重大问题的一种手段。但与此同时，对特高压电路技术的安全性和可靠性要求也越来越高。因此，仍需要进一步研究特高压电路的故障特性以及工程安全，以完善特高压直流输电线路保护，确保其稳定可靠运行。

本文主要通过对特高压输电线路、高压电工程以及保护装置的分析讨论，综合经济效益和安全效率，来分析未来特高压输电线路的优化方向以及抗逆能力。除此之外，本文也对特高压输电线路的运行方式、保护特点、保护配置以及保护过程进行了详细的对比分析，来对特高压输电线路的全面理解以及对特高压输电线路保护的深入研究。

分析的思路主要围绕特高压电路技术的故障特性、工程管理和线路保护的配置，以历史事故发生的原因为着眼点，探讨实际能够使用的解决方案。本文的结论表明。特高压线路目前所使用的材料以及控制装置仍存在较大的优化方向和提升潜力。在人员的管理、设备的更迭、项目的监督方面，应当加强对特高压线路的进一步防害，防灾能力。通过对特高压系统继电保护的配置和管理，提高特高压系统继电保护的运行水平。

关键词：特高压电路；线路保护；工程建设安全

Research on UHV Line Protection

Abstract

With the rapid development and maturity of UHV circuit technology in China, UHV DC transmission technology has gradually become a means to solve the major problems such as high voltage, large capacity, long-distance power transmission and power grid interconnection due to its remarkable economic benefits. But at the same time, the safety and reliability requirements of UHV circuit technology are getting higher and higher. Therefore, it is still necessary to further study the fault characteristics and engineering safety of UHV circuit, so as to improve the protection of UHV HVDC transmission line and ensure its stable and reliable operation.

In this paper, through the analysis and discussion of UHV transmission lines, high voltage engineering and protection devices, comprehensive economic benefits and safety efficiency, to analyze the future optimization direction of UHV transmission lines and anti-stress ability. In addition, this paper also makes a detailed comparative analysis of the operation mode, protection characteristics, protection configuration and protection process of UHV transmission lines, so as to have a comprehensive understanding of UHV transmission lines and conduct in-depth research on the protection of UHV transmission lines.

The analysis mainly focuses on the fault characteristics of UHV circuit technology, the engineering management and the configuration of line protection, and discusses the practical solutions from the perspective of the causes of historical accidents. The conclusion of this paper shows that. The materials and control devices currently used in UHV lines still have great potential for optimization and improvement. In the aspects of personnel management, equipment replacement and project supervision, the ability of further disaster prevention and disaster prevention for UHV lines should be strengthened. Through the configuration and management of UHV system relay protection, the operation level of UHV system relay protection can be improved.

Key words: UHV circuit; Line protection; Construction safety

目录

摘要 Ⅱ

Abstract Ⅲ

第一章 绪论 1

1.1研究背景 1

1.2研究意义 1

1.3国内外研究现状 2

第二章 特高压线路保护特性 3

2.1特高压线路保护面临的问题 3

2.1.1受电容电流影响 3

2.1.2受电磁暂态过程影响 4

2.1.3线路过压危险 4

2.2特高压线路结构和运行特点 4

2.3特高压线路保护 5

2.4本章小结 5

第三章 特高压输电线路工程问题分析 5

3.1当今电网工程的安全质量的控制情况分析 5

3.2加强对工程建设质量安全的控制方法分析 7

3.3本章小结 9

第四章 特高压线路保护配置 9

4.1配置基本原则 9

4.2线路主保护 10

4.3线路后备保护 10

4.4自动重合闸 10

4.5并联电抗器的保护 10

4.6本章小结 11

第五章 总结与展望 12

5.1总结 12

5.2展望 12

致谢 13

参考文献 14

第一章 绪论

1.1研究背景

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