500kV主变压器继电保护若干问题研究
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摘要
研究并解决500kV变压器保护在实际工程中存在的问题,具有重要的理论和现实意义。本文首先指出了500kV变压器保护配置存在的问题,提出了基于不同动作逻辑而非闭锁逻辑的双重化主保护配置方案,通过改变主保护配置方案提高保护灵敏性和速动性的方法。计算了500kV变压器热稳定极限时间,探讨后备保护与变压器热稳定性能间的配合问题。结合工程实践,提出一种有效的试验方案,能够对变压器二次电流回路正确性进行全面的检验。分析了自耦变压器公共绕组过负荷的原因,提出解决方法。最后,对变压器保护与母线保护的各种接口配合方案做对比研究,提出最优的解决方案。
It is important necessary and practical significant to research and resolve 500kV transformer protection in practical engineering problems.The paper first points out the problems of the 500kV transformer protection configuration.It makes a program of double main protection configuration,which is based on the operation logic rather than on the lock logic,a method for promoting the sensitivity and the speed by changing the main protection configuration.It calculated the time limit of the 500kV transformer thermal stability and explored the question that between the back-up protection and thermal stability the transformer.With the combination of engineering practice,an effective pilot program which is used for comprehensively testing the current secondary circuit of transformer is suggested in the paper.It Analyses the reason for the autotransformer public winding overload and make a solution.Finally,the paper compares to study the programs for the interface of transformer protection and busbar protection,and select the optimal solution.
It is important necessary and practical significant to research and resolve 500kV transformer protection in practical engineering problems.The paper first points out the problems of the 500kV transformer protection configuration.It makes a program of double main protection configuration,which is based on the operation logic rather than on the lock logic,a method for promoting the sensitivity and the speed by changing the main protection configuration.It calculated the time limit of the 500kV transformer thermal stability and explored the question that between the back-up protection and thermal stability the transformer.With the combination of engineering practice,an effective pilot program which is used for comprehensively testing the current secondary circuit of transformer is suggested in the paper.It Analyses the reason for the autotransformer public winding overload and make a solution.Finally,the paper compares to study the programs for the interface of transformer protection and busbar protection,and select the optimal solution.
引文
[1]国家电网公司.国家电网公司继电保护十年综述.2007.
[2]王维俭.电气主设备继电保护原理与应用.北京:中国电力出版社,2002.
[3]王增平,马静.关于变压器主保护的若干问题.电力系统保护与控制,2008,36(14):4-12.
[4]王维俭.变压器保护运行不良的反思.电力自动化设备,2001,21(10):1-3.
[5]Hermanto I,Murtry Y V S,Rahman MA.A Stand-alone Digital Protective Relay for Power Transformers.IEEE Trans on Power Delivery,1991,6(1):85-92
[6]Liu Pei,Malik O p,Chen Deshu,et al.Improved Opertion of Differential Protection of Power Transformer for Internal Faults.IEEE Trans on Power Delivery,1992,7(4):1912-1919.
[7]Kuniaki Yabe.Power Differential Method for Discrimination between Fault and Magnetizing Inrush Current in Transformers.IEEE Transactions on Power Delivery,1997,12(3):11-25.
[8]John H.Brunke,Klaus J.Frohlich.Elimination of Transformer Inrush Currents by Controlled Switching-Part Ⅰ Theoretical Considerations IEEE Transactions on Power Delivery,2001,16(2):237-247.
[9]Lin C E,Cheng C L,et al.Investigation of Magnetizing Inrush Current in Transformers Ⅰ.Numerical Simulation.IEEE Trans Power Delivery,1993,8(1):246-254.
[10]Sidhu T S,Sachdev M S.Online Identification of Magnetizing Inrush and Internal Faults in Three-phase Transformers.IEEE Trans on Power Delivery,1992,7(4):1885-1891.
[11]Verma H K,et al.Algorithm for Harmonic Restraint Differential Relaying Based on the Discrete Harldly Transform.Electrical Power System Research,1990,30(18):125-129.
[12]王祖光.间断角原理的变压器差动保护.电力系统自动化,1979,3(1):18-30.
[13]吕珍,岳蔚,刘沛.变压器差动保护二次谐波制动判据的仿真研究.继电器,2003,31(6):69-72.
[14]董洁,于莉萍.变压器差动保护涌流制动原理的研究.电力系统自动化,1997,21(12):30-33.
[15]唐跃中,刘勇,郭勇,等.几种变压器励磁涌流判别方法的特点及其内在联系的分析.电力系统自动化,1995,19(9):53-59.
[16]王国兴,张传利,黄益庄.变压器励磁涌流判据方法的现状和发展.中国电 力,1998,31(10):19-22.
[17]葛宝明,王祥珩,苏鹏声.电力变压器的励磁涌流判据及其发展方向.继电器,2003,27(22):1-5.
[18]姚斌,李永丽.基于波形上下对称系数识别励磁用流的新原理.继电器,2004,16(2):32-35.
[19]许正亚.几个励磁涌流新判据分析.电流自动化设备,2002,22(1):23-28.
[20]王增平,高中德,张举,等.模糊理论在变压器保护中的应用.电力系统自动化,1998,22(2):13-36.
[21]孙志杰,陈云仑.波形对称原理的变压器差动保护.电力系统自动化,1996,20(4):42-46.
[22]苗友忠,贺家李,孙雅明.变压器波形对称原理差动保护不对称度K的分析和整定.电力系统自动化,2001,25(16):26-29.
[23]李贵存,刘万顺,刘建飞.用波形拟合法识别变压器励磁涌流和短路电流的新原理.电力系统自动化,2001,25(14):15-18.
[24]李文文,崔新艺,陶慧良.利用间断角原理的数字式变压器保护的研究.电力自动化设备,1997,25(2):25-29.
[25]朱亚明,郑玉平,叶锋,等.间断角原理的变压器差动保护的性能特点及微机实现.电力系统自动化,1996,20(11):36-40.
[26]徐岩,王增平,杨奇逊,赵冬鸣.基于磁通特性的改进型变压器保护方案研究.继电器,2003,31(9):1-5.
[27]郑涛,刘万顺,庄恒建,肖仕武,焦邵华.基于改进型序阻抗原理的变压器保护方案.电力系统自动化,2004,27(14):5-10.
[28]黎功华,罗建,杨浩.基于绕组不平衡参数回路方程的变压器保护原理.电力系统自动化,2008,31(6):1-6.
[29]Keizo Inagaki,etc.Digital Protection Method for Power Transformers Based on An Equivalent Circuit Composed of Inverse Inductance.IEEE.PD,1995,3(4):1501-1510.
[30]国家电网公司.Q/GDW 175-2008.变压器、高压并联电抗器和母线保护及辅助装置标准化设计规范.北京:中国电力出版社,2008-02-15.
[31]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 14285-2006.继电保护和安全自动装置技术规程.北京:中国标准出版社,2006-08-30.
[32]国家电力公司.防止电力生产重大事故的二十五项重点要求.2000.
[33]国家电网公司.国家电网公司十八项电网重大反事故措施(试行).2005,6.
[34]王维剑,桂林,唐起超.主设备后备阻抗保护反应绕组短路的灵敏度分析. 电力自动化设备,2003,23(9):1-4.
[35]周旭,包玉胜,尤旦峰,凌刚,史素华.变压器相间后备保护的改进.电力系统自动化,2002,15(4):59-61.
[36]朱声石,吴运祥.微机变压器的相间后备保护.继电器,2000,28(1):37-41.
[37]毛锦庆,屠黎明,邹卫华,聂娟红.从加强主保护简化后备保护论变压器微机型继电保护装置.电力自动化设备,2005,29(18):1-6.
[38]袁宇波,周洞骥,陆于平,刘玉欢.基于不同转角方式的变压器差动保护灵敏度分析.电力系统自动化,2004,30(24):27-32.
[39]丁网林,骆健,刘强.零序电流对数字变压器差动保护Y,d矢量变换的影响及对策.电力系统自动化,2004,29(5):56-58.
[40]杨奇逊,微型机继电保护基础.北京:中国电力出版,1988.
[41]陈德树,计算机继电保护原理与技术[M].北京:中国电力出版社,1992.
[42]李永丽,贺家李.电力变压器新型微机保护原理的研究.电力系统自动化,1995,19(7):15-19.
[43]杨奇逊,刘建飞,张涛,黄少锋,张忠理.现代微机保护技术的发展与分析.电力设备,2003,5(10):1-8.
[2]王维俭.电气主设备继电保护原理与应用.北京:中国电力出版社,2002.
[3]王增平,马静.关于变压器主保护的若干问题.电力系统保护与控制,2008,36(14):4-12.
[4]王维俭.变压器保护运行不良的反思.电力自动化设备,2001,21(10):1-3.
[5]Hermanto I,Murtry Y V S,Rahman MA.A Stand-alone Digital Protective Relay for Power Transformers.IEEE Trans on Power Delivery,1991,6(1):85-92
[6]Liu Pei,Malik O p,Chen Deshu,et al.Improved Opertion of Differential Protection of Power Transformer for Internal Faults.IEEE Trans on Power Delivery,1992,7(4):1912-1919.
[7]Kuniaki Yabe.Power Differential Method for Discrimination between Fault and Magnetizing Inrush Current in Transformers.IEEE Transactions on Power Delivery,1997,12(3):11-25.
[8]John H.Brunke,Klaus J.Frohlich.Elimination of Transformer Inrush Currents by Controlled Switching-Part Ⅰ Theoretical Considerations IEEE Transactions on Power Delivery,2001,16(2):237-247.
[9]Lin C E,Cheng C L,et al.Investigation of Magnetizing Inrush Current in Transformers Ⅰ.Numerical Simulation.IEEE Trans Power Delivery,1993,8(1):246-254.
[10]Sidhu T S,Sachdev M S.Online Identification of Magnetizing Inrush and Internal Faults in Three-phase Transformers.IEEE Trans on Power Delivery,1992,7(4):1885-1891.
[11]Verma H K,et al.Algorithm for Harmonic Restraint Differential Relaying Based on the Discrete Harldly Transform.Electrical Power System Research,1990,30(18):125-129.
[12]王祖光.间断角原理的变压器差动保护.电力系统自动化,1979,3(1):18-30.
[13]吕珍,岳蔚,刘沛.变压器差动保护二次谐波制动判据的仿真研究.继电器,2003,31(6):69-72.
[14]董洁,于莉萍.变压器差动保护涌流制动原理的研究.电力系统自动化,1997,21(12):30-33.
[15]唐跃中,刘勇,郭勇,等.几种变压器励磁涌流判别方法的特点及其内在联系的分析.电力系统自动化,1995,19(9):53-59.
[16]王国兴,张传利,黄益庄.变压器励磁涌流判据方法的现状和发展.中国电 力,1998,31(10):19-22.
[17]葛宝明,王祥珩,苏鹏声.电力变压器的励磁涌流判据及其发展方向.继电器,2003,27(22):1-5.
[18]姚斌,李永丽.基于波形上下对称系数识别励磁用流的新原理.继电器,2004,16(2):32-35.
[19]许正亚.几个励磁涌流新判据分析.电流自动化设备,2002,22(1):23-28.
[20]王增平,高中德,张举,等.模糊理论在变压器保护中的应用.电力系统自动化,1998,22(2):13-36.
[21]孙志杰,陈云仑.波形对称原理的变压器差动保护.电力系统自动化,1996,20(4):42-46.
[22]苗友忠,贺家李,孙雅明.变压器波形对称原理差动保护不对称度K的分析和整定.电力系统自动化,2001,25(16):26-29.
[23]李贵存,刘万顺,刘建飞.用波形拟合法识别变压器励磁涌流和短路电流的新原理.电力系统自动化,2001,25(14):15-18.
[24]李文文,崔新艺,陶慧良.利用间断角原理的数字式变压器保护的研究.电力自动化设备,1997,25(2):25-29.
[25]朱亚明,郑玉平,叶锋,等.间断角原理的变压器差动保护的性能特点及微机实现.电力系统自动化,1996,20(11):36-40.
[26]徐岩,王增平,杨奇逊,赵冬鸣.基于磁通特性的改进型变压器保护方案研究.继电器,2003,31(9):1-5.
[27]郑涛,刘万顺,庄恒建,肖仕武,焦邵华.基于改进型序阻抗原理的变压器保护方案.电力系统自动化,2004,27(14):5-10.
[28]黎功华,罗建,杨浩.基于绕组不平衡参数回路方程的变压器保护原理.电力系统自动化,2008,31(6):1-6.
[29]Keizo Inagaki,etc.Digital Protection Method for Power Transformers Based on An Equivalent Circuit Composed of Inverse Inductance.IEEE.PD,1995,3(4):1501-1510.
[30]国家电网公司.Q/GDW 175-2008.变压器、高压并联电抗器和母线保护及辅助装置标准化设计规范.北京:中国电力出版社,2008-02-15.
[31]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 14285-2006.继电保护和安全自动装置技术规程.北京:中国标准出版社,2006-08-30.
[32]国家电力公司.防止电力生产重大事故的二十五项重点要求.2000.
[33]国家电网公司.国家电网公司十八项电网重大反事故措施(试行).2005,6.
[34]王维剑,桂林,唐起超.主设备后备阻抗保护反应绕组短路的灵敏度分析. 电力自动化设备,2003,23(9):1-4.
[35]周旭,包玉胜,尤旦峰,凌刚,史素华.变压器相间后备保护的改进.电力系统自动化,2002,15(4):59-61.
[36]朱声石,吴运祥.微机变压器的相间后备保护.继电器,2000,28(1):37-41.
[37]毛锦庆,屠黎明,邹卫华,聂娟红.从加强主保护简化后备保护论变压器微机型继电保护装置.电力自动化设备,2005,29(18):1-6.
[38]袁宇波,周洞骥,陆于平,刘玉欢.基于不同转角方式的变压器差动保护灵敏度分析.电力系统自动化,2004,30(24):27-32.
[39]丁网林,骆健,刘强.零序电流对数字变压器差动保护Y,d矢量变换的影响及对策.电力系统自动化,2004,29(5):56-58.
[40]杨奇逊,微型机继电保护基础.北京:中国电力出版,1988.
[41]陈德树,计算机继电保护原理与技术[M].北京:中国电力出版社,1992.
[42]李永丽,贺家李.电力变压器新型微机保护原理的研究.电力系统自动化,1995,19(7):15-19.
[43]杨奇逊,刘建飞,张涛,黄少锋,张忠理.现代微机保护技术的发展与分析.电力设备,2003,5(10):1-8.