谢小荣;刘平;张仁伟;白恺;王征;高洵;王辉;

• 1:电力系统国家重点实验室(清华大学电机系)
• 2:华北电力科学研究院
• 3:大唐国际发电股份有限公司
• 4:华北电网有限公司

摘要(Abstract)：

针对托克托电厂阻塞滤波器(blocking filter,BF)运行中出现的异步自励磁现象,从电路原理、特征值分析和电磁仿真3个方面分析了其机理。在电路原理上,分析了BF非线性阻抗频率特性,阐明BF在特定频率段内呈强容性和弱阻性是其与机网形成串联型参数谐振进而导致异步自励磁的内在原因。然后采用特征值方法定量分析了异步自励磁的稳定性,以及机、网和BF参数对自励磁风险的灵敏度的影响。最后基于详细电磁仿真复现8号机BF投运试验中出现的异步自励磁现象,对比仿真和现场试验结果,验证了电路和特征值分析的正确性,为进一步修正BF设计、解决托克托电厂次同步谐振问题奠定了基础。

关键词(KeyWords)： 阻塞滤波器;次同步谐振;异步自励磁

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51077080)~~

作者(Author): 谢小荣;刘平;张仁伟;白恺;王征;高洵;王辉;

Email:

DOI: 10.13335/j.1000-3673.pst.2012.04.036

参考文献(References)：

• [1]刘世宇,谢小荣,王仲鸿.我国火电基地串补输电系统的次同步谐振问题[J].电网技术,2008,32(1):5-8.Liu Shiyu,Xie Xiaorong,Wang Zhonghong.SSR problem incompensated transmission system of thermal power bases in China[J].Power System Technology,2008,32(1):5-8(in Chinese).
• [2]陈武晖,毕天姝,杨奇逊.含负荷模型的次同步谐振分析[J].电网技术,2010,34(4):76-81.Chen Wuhui,Bi Tianshu,Yang Qixun.Analysis of subsynchronousresonance containing load models[J].Power System Technology,2010,34(4):76-81(in Chinese).
• [3]田旭,姜齐荣,谢小荣.电力系统次同步谐振抑制措施综述[J].电网技术,2010,34(12):74-79.Tian Xu,Jiang Qirong,Xie Xiaorong.Review of measures to mitigatesubsynchronous resonance in power systems[J].Power SystemTechnology,2010,34(12):74-79(in Chinese).
• [4]IEEE SSR Working Group.Countermeasures to subsynchronousresonance problems[J].IEEE Trans.on PAS,1980,99(5):1810-1818.
• [5]Baker D H,Boukarim G E,et al.Subsynchronous resonance studiesand mitigation methods for series capacitor applications[C]//Proceedings of Inaugural Conference and Exposition inAfrica.Durban,South Africa:IEEE,PES,2005:386-392.
• [6]Farmer R G,Schwalb A L,Katz E.Navajo project report onsubsynchronous resonance analysis and solutions[J].IEEE Trans.onPAS,1977,96(4):1226-1232.
• [7]Bowler C E J,Baker D H,Mincer N M,et al,Operation&test of theNavajo SSR protective equipment[J].IEEE Trans.on PAS,1978,97(4):1030-1035.
• [8]刘平,马凯,刘辉,等.托克托电厂阻塞滤波器模态中心频率偏移对抑制次同步谐振的影响[J].中国电力,2010,43(1):25-29.Liu Ping,Ma Kai,Liu Hui,et al.Impacts of center frequency offsetof Tuoketuo power plant blocking filters on SSR mitigation[J].Electric Power,2010,43(1):25-29(in Chinese).
• [6]刘福生,江荣汉.同步电机自励磁的向量分析[J].中国电机工程学报,1987,7(6):67-73.Liu Fusheng,Jiang Ronghan.Vector analysis of self-excitation ofsynchronous generators[J].Proceedings of the CSEE,1987,7(6):67-73(in Chinese).
• [10]唐志平.同步发电机自励磁研究[J].电网技术,1999,23(10):24-28Tang Zhiping.Study on self-excited oscillation in synchronousgenerators[J].Power System Technology,1999,23(10):24-28(inChinese).
• [11]崔文进,陆超,夏祖华,等.与长线相联的发电机自励磁仿真与实验[J].清华大学学报(自然科学版),2002,42(9):1154-1157.Cui Wenjin,u Chao,Xia Zuhua,et al.Simulation of self-excitationof generators connected to long transmission lines[J].Journal ofTsinghua University(Science and Technology),2002,42(9):1154-1157(in Chinese).
• [12]陈闽江,陈家庚,丁明.多机电力系统自励磁判定的状态空间分析法[J].电网技术,2004,28(15):53-56.Chen Minjiang,Chen Jiageng,Ding Ming.Judging self-excitation inmulti-machine system by state-space method[J].Power SystemTechnology,2004,28(15):53-56(in Chinese).
• [13]Cen Haifeng,Wang Xitian.Analysis of self-excitation inturbine-generators induced by static blocking filter[C]//2010Asia-Pacific Power and Energy Engineering Conference(APPEEC).Chengdu,China:IEEE,PES,2010:1-5.
• [14]陈陈,杨煜.几种次同步振荡分析方法和工具的阐述[J].电网技术,1998,22(8):10-13.Chen Chen,Yang Yu.Discussion of several analytical approaches andtools about subsynchronous resonance(SSR)[J].Power SystemTechnology 1998,22(8):10-13(in Chinese).
• [15]倪以信,陈寿孙,张宝霖.动态电力系统的理论和分析[M].北京:清华大学出版社,2002:300-303.