基于頻率監(jiān)測(cè)網(wǎng)中廣域電壓相角的區(qū)域間振蕩分析
李冰1，吳振躍1，劉奕路2，肖登明1，焦俊韜1
1 上海交通大學(xué) 電氣工程系，上海 200030；
2 田納西大學(xué) 電氣工程與計(jì)算機(jī)工程系，田納西 諾克思維爾 37901
摘 要：區(qū)域間振蕩會(huì)嚴(yán)重影響系統(tǒng)的正常運(yùn)行，一旦線路發(fā)生連鎖故障，將引發(fā)更大的系統(tǒng)擾動(dòng)。通過(guò)頻率監(jiān)測(cè)網(wǎng)捕捉到了美國(guó)東部互聯(lián)電力網(wǎng)發(fā)生的6 例典型的區(qū)域間振蕩現(xiàn)象并使用矩陣束方法對(duì)電壓相角相對(duì)值多路數(shù)據(jù)進(jìn)行了模態(tài)分析，計(jì)算了相應(yīng)的振型參數(shù)，提出了每一個(gè)振蕩現(xiàn)象案例的主模的振型，分析其結(jié)果并給出了東部互聯(lián)電網(wǎng)的區(qū)域間振型的分布情況。
關(guān)鍵詞：區(qū)域間振蕩；矩陣束；振型；廣域監(jiān)測(cè)系統(tǒng) 中圖分類號(hào)：TM764.1；TM935 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2014)02-0011-06
Inter-Area Oscillation Analysis Using Wide Area Voltage Angle Measurements from Frequency Monitoring Network
LI Bing1, WU Zhen-yue1, LIU Yi-lu2, XIAO Deng-ming1, JIAO Jun-tao1
1 Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China;
2 Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville 37901, US
Abstract: Inter-area oscillation will seriously affect the normal operation of the system. Once the line cascading failure occurs, the system will produce greater disturbance. The inter-area oscillations occurring in the Eastern Interconnection of United States were investigated by six typical cases using the frequency monitoring network (FNET) data. The matrix pencil method of multiple signals was used for the modal analysis. The parameters related to mode shape were calculated. The mode shapes for the dominant mode are revealed for each case. Analysis results depict a view of inter-area mode distribution in the Eastern Interconnection.
Key words: inter-area oscillation; matrix pencil; mode shape; wide area monitoring system
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