MMC對(duì)交流系統(tǒng)三相短路故障短路電流影響的機(jī)理研究
[Abstract]:Based on the operation control principle of flexible DC transmission system, this paper analyzes the characteristics of short circuit current provided by converter station after three-phase short circuit fault occurs in the near area of the converter station of flexible DC network, and builds a model on PSCAD for simulation verification. It is found that after the short-circuit fault occurs, the flexible DC converter station has the characteristics of current source, and the short-circuit current can be divided into two stages: transient process and steady state process. After the response of the fault generation control system, the short circuit current provided by the converter station is three phase symmetric AC, and there is no DC component. The transient process of short-circuit current is related to the control parameters of the converter station, while the value of the steady-state value of the short-circuit current is closely related to the control mode, operation mode and control parameters of the converter station controller. This study can provide a reference for the design of control parameters in the construction of flexible DC transmission project in the future and the selection of the access point of the converter station in the flexible direct current transmission project.
【作者單位】: 中國電力科學(xué)研究院;
【基金】:國家電網(wǎng)公司科技項(xiàng)目《±500k V柔性直流電網(wǎng)運(yùn)行特性與控制技術(shù)研究》 國家重點(diǎn)研發(fā)計(jì)劃(2016YFB0900600)~~
【分類號(hào)】:TM721.1
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 高凱平;限制短路電流的方法[J];電力安全技術(shù);2000年03期
2 張紹忠;短路電流大好還是小好[J];農(nóng)村電工;2002年09期
3 楊耀政;低壓短路電流及其計(jì)算[J];山西建筑;2004年18期
4 潘思安,何善瑾;上海220kV電網(wǎng)短路電流控制研究[J];華東電力;2005年05期
5 韓武;董俊;孫士云;江顯芝;;T接空載線路對(duì)短路電流影響的研究[J];云南電力技術(shù);2005年06期
6 吳國忠;;多級(jí)電網(wǎng)短路電流的簡便計(jì)算方法[J];機(jī)械管理開發(fā);2006年01期
7 任志遠(yuǎn);;電網(wǎng)短路電流問題的探討和限制短路電流的措施[J];內(nèi)蒙古石油化工;2007年10期
8 曾志波;;淺議電力設(shè)計(jì)中關(guān)于短路電流的計(jì)算方法[J];建材與裝飾(下旬刊);2008年02期
9 陶建鑫;朱本坤;;基于環(huán)網(wǎng)的短路電流計(jì)算方法研究[J];電子設(shè)計(jì)工程;2013年03期
10 О.Б.Брон;Ю.И.Шестиперов;劉書駿;;論1000伏以下電網(wǎng)中的短路電流[J];低壓電器技術(shù)情報(bào);1980年06期
相關(guān)會(huì)議論文 前10條
1 劉俊;馬志瀛;閆靜;涂煜;欒樂;;基于改進(jìn)梯度校正法的短路電流在線實(shí)時(shí)計(jì)算[A];第一屆電器裝備及其智能化學(xué)術(shù)會(huì)議論文集[C];2007年
2 林s,
本文編號(hào):2309932
本文鏈接:http://sikaile.net/kejilunwen/dianlidianqilunwen/2309932.html