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基于励磁电感参数识别的快速变压器保护

DOI: 10.13334/j.0258-8013.pcsee.2014.10.018, PP. 1658-1666

Keywords: 变压器,参数识别,励磁涌流,励磁电感,波动性,时域

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Abstract:

为进一步提高电力变压器保护的性能,提出一种基于励磁电感参数识别的变压器快速主保护方案。通过分析T型等效电路中励磁电感在变压器正常运行、铁芯饱和以及内部故障时的特点,构建了基于励磁电感数值大小和波动性的变压器保护判据。研究表明:时域参数识别方法计算得到的励磁电感,在正常运行和外部故障时其数值较大;在内部故障时,由于故障电流为差动电流的一部分,励磁电感的计算数值较小;在铁芯饱和时数值在较大值和较小值之间波动。由于保护判据中考虑了铁芯饱和对励磁电感数值的影响,因此该保护方案能够快速灵敏地识别变压器故障,且不受励磁涌流的影响,具有良好的性能。动模试验验证了该保护方案的有效性,试验结果表明,该方案能够可靠地识别变变压器内部故障。

References

[1]  索南加乐, 焦在滨, 张怿宁, 等.基于波形系数的变压器励磁涌流快速识别算法[J].电网技术, 2006, 30(11):71-76.Suonan Jiale, Jiao Zaibin, Zhang Yining, et al.A fast algorithm to identify inrush current based on waveform factor[J].Power System Technology, 2006, 30(11):71-76(in Chinese).
[2]  王增平, 马静.基于等效瞬时漏感与回路方程的变压器保护原理[J].中国电机工程学报, 2007, 27(19):39-44.Wang Zengping, Ma Jing.A novel principle of transformer protection based on instantaneous equivalent inductance and loop equation[J].Proceedings of the CSEE, 2007, 27(19):39-44(in Chinese).
[3]  马静, 王增平, 王雪.基于等效瞬时漏电感的变压器保护新原理[J].电力系统自动化, 2006, 30(23):64-68, 103.Ma Jing, Wang Zengping, Wang Xue.Novel principle of power transformer protection based on equivalent instantaneous leakage inductance[J].Automation of Electric Power Systems, 2006, 30(23):64-68, 103(in Chinese).
[4]  熊小伏, 邓祥力, 游波.基于参数辩识的变压器微机保护[J].电力系统自动化, 1999, 23(11):18-21.Xiong Xiaofu, Deng Xiangli, You Bo. Transformer protection using parameter identification method [J].Automation of Electric Power Systems, 1999, 23(11):18-21(in Chinese).
[5]  郝治国, 张保会, 褚云龙, 等.基于等值回路平衡方程的变压器保护原理[J].中国电机工程学报, 2006, 26(10):67-72.Hao Zhiguo, Zhang Baohui, Chu Yunlong, et al.Study on transformer protection principle based on equivalent circuit equilibrium equation[J].Proceedings of the CSEE, 2006, 26(10):67-72(in Chinese).
[6]  Inagaki K, Higaki M, Matsui Y, et al.Digital protection method for power transformers based on an equivalent circuit composed of inverse inductance[J].IEEE Transactions on Power Delivery, 1988, 3(4):1501-1510.
[7]  孙志杰, 曾献华, 汤汉松, 等.磁通制动原理在变压器差动保护中的应用[J].电力自动化设备, 2005, 25(1):79-81.Sun Zhijie, Zeng Xianhua, Tang Hansong, et al.Application of flux restraint theory in transformer differential protection[J].Electric Power Automation Equipment, 2005, 25(1):79-81(in Chinese).
[8]  葛宝明, 苏鹏声, 王祥珩, 等.基于瞬时励磁电感频率特性判别变压器励磁涌流[J].电力系统自动化, 2002, 26(17):35-39.Ge Baoming, Su Pengsheng, Wang Xiangheng, et al.Distinguish inrush currents for transformers using frequency characteristic of instantaneous excitation inductance[J].Automation of Electric Power Systems, 2002, 26(17):35-39(in Chinese).
[9]  焦邵麟, 黄明辉, 肖仕武, 等.基于等效瞬时励磁电感时域特性判别变压器励磁涌流[J].电力设备, 2006, 7(9):68-71.Jiao Shaolin, Huang Minghui, Xiao Shiwu, et al.Discrimination of transformer excitation surge current based on time domain property of equivalent instant excitation inductance[J].Electrical?Equipment, 2006, 7(9):68-71(in Chinese).
[10]  索南加乐, 康小宁, 宋国兵, 等.基于参数识别的继电保护原理初探[J].电力系统及其自动化学报, 2007(1):14-20, 27.Suonan Jiale, Kang Xiaoning, Song Guobing, et al.Survey on relay protection using parameter identification [J].Proceedings of the CSU-EPSA, 2007(1):14-20, 27(in Chinese).
[11]  康小宁, 索南加乐.基于参数识别的单端电气量频域法故障测距原理[J].中国电机工程学报, 2005, 25(2):22-27.Kang Xiaoning, Suonan Jiale.Frequency domain method of fault location based on parameter identification using one terminal data[J].Proceedings of the CSEE, 2005, 25(2):22-27(in Chinese).
[12]  索南加乐, 张超, 王树刚.基于模型参数识别法的小电流接地故障选线研究[J].电力系统自动化, 2004, 28(19):65-70.Suonan Jiale, Zhang Chao, Wang Shugang.Fault line selection in the non-solid earthed network based on the model identification method[J].Automation of Electric Power Systems, 2004, 28(19):65- 70(in Chinese).
[13]  沈晓凡, 舒治淮, 刘宇, 等.2007年国家电网公司继电保护装置运行情况[J].电网技术, 2008, 32(16):5-8.Shen Xiaofan, Shu Zhihuai, Liu Yu, et al.Operation situation of protective relayings of State Grid Corporation of China in 2007[J].Electrical Equipment, 2008, 32(16):5-8(in Chinese).
[14]  王维俭.电气主设备继电保护原理与应用[M].2版.北京:中国电力出版社, 2002:106-107.Wang Weijian.Principle and application of electric main equipment relay protection[M].2nd ed.Beijing:China Electric Power Press, 2002:106-107(in Chinese).
[15]  王祖光.间断角原理的变压器差动保护[J].电力系统自动化, 1979, 3(1):18-30.Wang Zuguang.Transformer differential protection based on dead angle principle[J].Automation of Electric Power Systems, 1979, 3(1):18-30(in Chinese).
[16]  孙志杰, 陈云仑.波形对称原理的变压器差动保护[J].电力系统自动化, 1996, 20(4):42-46.Sun Zhijie, Chen Yunlun.Transformer differential protection based on the characteristic analysis of the first and second half cycle of the magnetizing in-rush current [J].Automation of Electric Power Systems, 1996, 20(4):42-46(in Chinese).
[17]  陈德树, 尹项根, 张哲, 等.虚拟三次谐波制动式变压器差动保护[J].中国电机工程学报, 2001, 21(8):19-23.Chen Deshu, Yin Xianggen, Zhang Zhe, et al.Virtual third harmonic restrained transformer differential protection principle and practice[J].Proceedings of the CSEE, 2001, 21(8):19-23(in Chinese).
[18]  王维俭, 王祥珩, 王赞基.大型发电机变压器内部故障分析与继电保护[M].1版.北京:中国电力出版社, 2006:207-209.Wang Weijian, Wang Xiangheng, Wang Zanji.The internal fault analysis and relay protection of large generator transformer[M].1st ed.Beijing:China Electric Power Press, 2006:207-209(in Chinese).
[19]  张保会, 尹项根.电力系统继电保护[M].1st ed.北京:中国电力出版社, 2005:191-192.Zhang Baohui, Yin Xianggen.Power system protective relaying[M].Beijing:China Electric Power Press, 2005:191-192(in Chinese).
[20]  焦在滨.基于励磁支路参数的变压器保护新原理[D].西安:西安交通大学, 2008.Jiao Zaibin.Studies on new protection scheme of power transformer based on parameters of excitation branch [D].Xi’an:Xi’an Jiaotong University, 2008(in Chinese).
[21]  张小青, 吴维韩.电力系统中考虑铁磁元件磁滞特性的暂态计算[J].中国电机工程学报, 1993, 13(2):8-14.Zhang Xiaoqing, Wu Weihan.Calculation of transients in power system containing ferromagnetic elements [J].Proceedings of the CSEE, 1993, 13(2):8-14(in Chinese).

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