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采用CAN總線的廣域保護(hù)研究

來(lái)源:電工電氣發(fā)布時(shí)間:2016-03-11 13:11 瀏覽次數(shù):7

采用CAN總線的廣域保護(hù)研究 

吳丹寧,楊青松,吳華仁 
(1 應(yīng)天職業(yè)技術(shù)學(xué)院,江蘇 南京 210046;2 國(guó)電南京自動(dòng)化股份有限公司,江蘇 南京 211100;
3 南京師范大學(xué) 電氣與自動(dòng)化工程學(xué)院,江蘇 南京 210042)
 
 

摘 要:分布式電源和微電網(wǎng)的接入,給配電網(wǎng)繼電保護(hù)提出了新的要求。為了縮短故障切除時(shí)間,保證動(dòng)作的選擇性和快速性,研發(fā)了基于DSP 的廣域保護(hù)裝置,探索了CAN 總線在廣域保護(hù)中的應(yīng)用。廣域保護(hù)中不同位置的保護(hù)裝置通過(guò)CAN 總線交換信息,能夠快速確定故障區(qū)域,明顯縮短故障切除時(shí)間。對(duì)廣域保護(hù)樣機(jī)進(jìn)行了實(shí)驗(yàn)研究,實(shí)驗(yàn)結(jié)果表明,CAN 總線用于廣域保護(hù)能提高繼電保護(hù)性能。
關(guān)鍵詞:廣域保護(hù);故障;CAN 總線;數(shù)字信號(hào)處理器
中圖分類號(hào):TM727;TN915.04 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2015)11-0005-04


Research on Wide Area Protection with Controller Area Network Bus 

WU Dan-ning, YANG Qing-song, WU Hua-ren 
(1 Yingtian College, Nanjing 210046, China; 2 Guodian Nanjing Automation Co., Ltd, Nanjing 2111 00, China;
3 School of Electrical & Automation Engineering, Nanjing Normal University, Nanjing 210042, China)
 
 

Abstract: The distributed generation and microgrid access make power distribution network protective relaying have new requirements. In order to shorten the time for clearing faults and to ensure selectivity and rapidity of trip, this paper developed a wide area protection device based on digital signal processor (DSP) and researched the application of controller area network (CAN) bus in wide area protection. The protection devices of different positions in wide area protection exchanged messages by CAN bus to determine the fault zone quickly, which distinctly shortened the time for clearing faults. A prototype of wide area protection was tested. The testing results indicate that the CAN bus can improve the protection quality.
Key words: wide area protection; fault; controller area network bus; digital signal processor


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