Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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大規(guī)模風(fēng)電集中接入對(duì)系統(tǒng)短路電流的影響分析

來(lái)源:電工電氣發(fā)布時(shí)間:2016-03-11 13:11 瀏覽次數(shù):11

大規(guī)模風(fēng)電集中接入對(duì)系統(tǒng)短路電流的影響分析 

周專,呂盼,宋新甫,張?jiān)鰪?qiáng),劉建亮 
(1 國(guó)網(wǎng)新疆電力公司經(jīng)濟(jì)技術(shù)研究院,新疆 烏魯木齊 830016;
2 國(guó)網(wǎng)新疆電力公司奎屯供電公司,新疆 奎屯 832100)
 
 

摘 要:規(guī)?;L(fēng)電集中接入電網(wǎng),將對(duì)系統(tǒng)提供一定的短路電流,影響設(shè)備選型、升壓站中低壓側(cè)的運(yùn)行方式等。通過(guò)對(duì)不同風(fēng)電機(jī)組型號(hào)(雙饋式和直驅(qū)式)及不同容量的單個(gè)風(fēng)電機(jī)組對(duì)系統(tǒng)提供的短路電流分析,根據(jù)風(fēng)電機(jī)組短路PMU 錄波曲線和風(fēng)電機(jī)組模型短路仿真曲線,提出了一種工程計(jì)算方法,計(jì)算出不同型號(hào)和不同容量的風(fēng)電機(jī)組等值次暫態(tài)電抗,并結(jié)合短路電流理論計(jì)算模型,分析單個(gè)風(fēng)電場(chǎng)以及風(fēng)電匯集站對(duì)系統(tǒng)提供的短路電流,結(jié)果表明,規(guī)模化風(fēng)電的集中接入,對(duì)系統(tǒng)提供的短路電流不可忽略。
關(guān)鍵詞:風(fēng)電場(chǎng);風(fēng)電機(jī)組;次暫態(tài)電抗;短路電流
中圖分類號(hào):TM614 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2015)11-0013-04


Impact of Large-Scale Wind Power Centralized Access on System Short-Circuit Current 

ZHOU Zhuan, LV Pan, SONG
Xin-fu, ZHANG Zeng-qiang, LIU Jian-liang
 
(1 State Grid Electric Power Company Xinjiang Institute of Economic Research Technology, Urumqi 830016, China;
2 State Grid Xinjiang Power Company Kuitun Power Supply Company, Kuitun 832100, China)
 
 

Abstract: Large-scale wind power centralized access to the power grid caused many problems, such as short-circuit current, equipment selection and mode of operation at middle and low voltage side in booster station etc. Through the different wind turbine generator models (dual-fed and direct drive) and single wind turbine generator of different capacity, this paper analyzed the system short-circuit current. Based on wind turbines short-circuit PMU recorded wave curve and wind turbine generator model short-circuit simulation curve, this paper proposed an engineering calculation method to calculate the different models and capacity wind turbine generator equivalent subtransient reactance. Combining with the theoretical calculation model of short-circuit current, this paper analyzed the system short-circuit current provided by the single wind farm and wind power centralized station. The result shows that the large-scale wind power centralized access provides the un-neglected short-circuit current for the system.
Key words: wind farm; wind turbine generator; subtransient reactance; short-circuit current


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