内容:
基于Matlab系统的HVDC系统设计
摘要
高压直流输电(HVDC)技术在过去的几十年中取得了巨大的成就。直流输电技术具有技术面广、技术含量高、综合性很强的特点,它不仅促进了电力电子技术的发展,而且伴随着电力电子器件、计算机技术的发展,新材料的出现,新能源和可再生能源的开发利用,一定会为电力工业的发展发挥更大的作用。
本文首先介绍了高压直流输电(HVDC)技术的历史发展以及国内外现状,分析了高压直流输电系统的基本结构和元件,并总结了高压直流输电系统的运行特性。之后着重讨论了柔性直流输电,也就是基于电压源换流器的高压直流输电(VSC-HVDC)。分析了它的基本结构和工作原理,并运用Matlab软件建立了VSC-HVDC系统的仿真模型,通过对仿真结果的分析,验证了高压直流输电系统的适用性和合理性。
关键字:高压直流输电 柔性直流输电 电压源换流器 Matlab仿真
The design of HVDC system d on Matlab system
Abstract
HVDC technology has made great achievements in the past few decades. Since 1882, the use of the HVDC power transmission, especially in twentieth Century, the rapid development of high power switching devices, to promote the rapid development of the new HVDC transmission, the HVDC is extended to the distribution network and the development of new energy sources such as wider areas. DC transmission technology is wide, high technology content, strong comprehensive technology, it not only promoted the development of power electronic technology, and with the development of computer technology, power electronic devices, the emergence of new materials, new energy development and utilization of renewable energy, will play a more important role for the development of electric power industry.
This paper first introduces the HVDC technology development history and current situation at home and abroad, analyzes the basic structure and components of HVDC system, and summarizes the operation characteristics of the HVDC system. Discusses the HVDC, HVDC is d on voltage source converter (VSC-HVDC). This paper analyzes the basic structure and its working principle, and establishes the simulation model of VSC-HVDC system using Matlab software, through the analysis of simulation results, verify the HVDC system applicability and rationality.
Keyword:HVDC; flexible HVDC ;voltage source converter; Matlab simulation
目录
第一章 绪论 2
1.1 高压直流输电的课题背景 2
1.2 本课题研究的主要内容及选题的意义 2
1.3 高压直流输电系统的结构及元件 2
1.4 高压直流输电系统的运行特性 2
1.5 高压直流输电的历史及其国内外现状 2
第二章 VSC-HVDC系统的基本结构和工作原理 3
2.1 VSC-HVDC系统的基本结构 3
2.2 VSC-HVDC系统的工作原理 3
2.3 VSC-HVDC系统的控制 3
2.4 VSC-HVDC系统的特点及应用场合 3
第三章 VSC-HVDC系统的仿真及仿真结果分析 3
3.1 VSC-HVDC系统的稳态情况仿真 3
3.2 VSC-HVDC系统的三相接地故障情况仿真 3
第四章 总结 3