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

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一起由于電廠調(diào)速系統(tǒng)造成電網(wǎng)低頻振蕩的案例分析

來源:電工電氣發(fā)布時間:2016-03-10 15:10 瀏覽次數(shù):11

一起由于電廠調(diào)速系統(tǒng)造成電網(wǎng)低頻振蕩的案例分析 

贠劍1,王衡2,常喜強2,張鋒2,亢朋朋1 
1 新疆電力科學研究院,新疆 烏魯木齊 830011;2 國網(wǎng)新疆電力公司調(diào)度控制中心,新疆 烏魯木齊 830002 
 

摘 要:介紹了一起由于電廠一次調(diào)頻存在問題導致電網(wǎng)出現(xiàn)振蕩的振蕩擾動源定位及分析案例。通過PSASP仿真程序判斷振蕩的類型,利用支路能量割集法和基于WAMS的機組機械功率與電氣功率波動相位關系法對擾動源進行精準定位,進一步分析研究實現(xiàn)機組控制系統(tǒng)級振蕩源的定位。經(jīng)實例證明,對電力系統(tǒng)分析定位類似事故提供了依據(jù)及方法。
關鍵詞:一次調(diào)頻;低頻振蕩;強迫功率振蕩;振蕩源定位;能量割集法;調(diào)速系統(tǒng)
中圖分類號:TM712 文獻標識碼:B 文章編號:1007-3175(2015)08-0036-04


A Case Study on Grid Low Frequency Oscillation Caused by Speed Control System of Power Station 

YUN Jian1, WANG Heng2, CHANG Xi-qiang2, ZHANG Feng2, KANG Peng-peng1 
1 Xinjiang Electric Power Research Institute, Urumqi 830011, China;2 Xinjiang Electric Operations Control Center, Urumqi 830002, China 
 

Abstract:Introduction was made to a case of location and analysis of low frequency oscillation source which caused by the primary frequency compensation problem of power station. PSASP simulation programs were used to judge the oscillation types and to extractly locate the oscillation sources by the subcircuit energy cutset and the phase relationship between mechanical power and electric power based on WAMS. This paper further analyzed the location of the oscillation source of unit control system and the system realized the localization. Actual examples show that this method has great guiding significance for the power system to solve similar accidents.
Key words: primary frequency regulation; low frequency oscillation; forced power oscillation; location of oscillation source; energy cutset method; speed control system


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