基于Matlab的高压直流输电换相过程可视化  

Visualization of the HVDC commutation process based on Matlab

作　　者：杨大春[1] 刘天琪[1] 李兴源[1] 

机构地区：[1]四川大学电气信息学院,四川成都610065

出　　处：《电力系统保护与控制》2008年第22期77-81,共5页Power System Protection and Control

基　　金：973项目(2004CB217909)

摘　　要：换相失败是直流输电系统中最常见的故障之一,对电力系统的危害极大。一旦发生换相失败,将导致直流功率无法正常送出及交流电压波形畸变。为了便于分析换相失败,以换相过程的可视化为重点,介绍了基于MATLAB的高压直流输电换相过程可视化程序的开发设计思想和总体结构,阐述了该程序所具备的功能。换相过程可视化程序提供了良好的图形用户界面,用户可以直观地观察到换相过程特别是换相失败时换流阀的导通状况及高压直流输电各种状态参数的波形,便于分析各种因素对换相失败的影响。Commutation failure which is one of the most common faults in HVDC transmission system does very great harm to the power system. When commutation failure happened, it leads to sending DC power abnormally and AC voltage waveform distortion. In order to facilitate the analysis for commutation failure, the ideas on design, the structure and the function of a program for visualization of the HVDC commutation process are presented in this paper. This program which bases on MATLAB with focusing on visualization of commutation process provides a good graphical user interface. Users can directly observe conduction state of converter valve and waveforms of HVDC various state parameters in commutation process especially for commutation failure through this program which facilitate the analysis of various factors on the impact of commutation failure.

关 键 词：高压直流输电 换相过程 可视化 换相失败 

分 类 号：TM76[电气工程—电力系统及自动化] TM721.1