特高压直流输电技术对电力系统安全稳定性的影响分析
Study on Influence of Ultra-High Voltage Direct Current Transmission on System Security and Stability
刘沛1
作者信息
- 1. 国家电网有限公司直流技术中心,北京 100052
- 折叠
摘要
特高压直流输电技术作为一种先进的电力输送手段,在全球范围内逐渐得到广泛应用.文章详细介绍了特高压直流输电的基本原理,包括通过提高输电电压以减少线路电流和损耗,从而实现长距离和大容量电力传输的能力.分析了该技术的研究必要性,指出其在现代电力系统中的关键作用,尤其是在提升电网经济性和可靠性方面的贡献.此外,文章探讨了特高压直流输电技术的特点,如降低电容效应和提高系统稳定性等,以及在应对不同故障情况下的措施,如单极闭锁故障和双极闭锁故障的处理.通过实际案例分析,展示特高压直流输电技术在确保电力系统稳定运行和促进可再生能源利用方面的实际效益.
Abstract
As an advanced power transmission method,ultra-high voltage direct current transmission technology has been widely used in the world.This paper introduces the basic principle of ultra-high voltage direct current transmission in detail,including the ability to realize long-distance and large-capacity power transmission by increasing transmission voltage to reduce line current and loss.This paper analyzes the research necessity of this technology,and points out its key role in modern power system,especially its contribution to improving the economy and reliability of power grid.In addition,this paper discusses the characteristics of ultra-high voltage direct current transmission technology,such as reducing capacitance effect and improving system stability,as well as measures to deal with different fault situations,such as unipolar blocking fault and bipolar blocking fault.Through the analysis of practical cases,the practical benefits of ultra-high voltage direct current transmission technology in ensuring the stable operation of power system and promoting the utilization of renewable energy are demonstrated.
关键词
特高压/直流输电/系统安全Key words
ultra-high voltage/direct current transmission/system safety引用本文复制引用
出版年
2024
NETL
NSTL
万方数据