特高压变压器主保护及工程应用研究
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摘要
特高压变压器是特高压输电系统中最重要的设备之一,其运行状况对整个电力系统尤其是特高压系统的安全稳定运行起着关键性作用。研究特高压变压器保护的配置方案、励磁涌流识别和整定计算,对特高压系统运行具有重大现实意义。本论文根据特高压变压器的特殊结构,总结了特高压变压器保护功能总体配置方案:提出了特高压变压器可考虑配置分相差动加低压侧小区差动,分析了调压变压器和补偿变压器独立配置差动保护的必要性。论文重点分析了特高压变压器励磁涌流特点,提出了解决调压变压器励磁涌流的两种方法,一种从工程应用角度提出了消磁法,通过消磁来提高励磁涌流中二次谐波含量,避免空充时调压变压器差动保护误动;另外一种从励磁涌流识别判据角度,提出了新的综合的励磁涌流识别判据,并对新判据进行了动模试验和现场空充数据的回放试验,证明新的涌流识别判据是有效可行的。为了适应特高压变压器调压补偿变的结构、运行特点,提出调压补偿变保护的整定方案。
UHV transformer is one of the most important equipments in the UHV system. The operation state of UHV transformer plays a key role for the security and stability of the entire power system,particularly UHV system.It is necessary and significant to study the UHV protection configuration,inrush recognition and setting calculation.The structure of UHV transformer is different from the traditional transformer.The overall configuration scheme is summarized.Phase differential protection and limit zone differential protection for low voltage side are configured for UHV transformer.It is concluded that voltage regulator and compensation transformer differential protection must be configured separately. Inrush characteristic for UHV transformer is analyzed.Two methods for solving inrush recognition are provided.The first is eliminating the remanence of the transformer so as to improve the 2~(nd) harmonic content.And then a new comprehensive inrush recognition method is provided,which is proved valid and feasible by the dynamic simulation and the UHV debugging waves replaying.In order to adapt to the structure and the operating characteristics of the regulator compensation transformer,the protection setting calculation scheme is provided.
UHV transformer is one of the most important equipments in the UHV system. The operation state of UHV transformer plays a key role for the security and stability of the entire power system,particularly UHV system.It is necessary and significant to study the UHV protection configuration,inrush recognition and setting calculation.The structure of UHV transformer is different from the traditional transformer.The overall configuration scheme is summarized.Phase differential protection and limit zone differential protection for low voltage side are configured for UHV transformer.It is concluded that voltage regulator and compensation transformer differential protection must be configured separately. Inrush characteristic for UHV transformer is analyzed.Two methods for solving inrush recognition are provided.The first is eliminating the remanence of the transformer so as to improve the 2~(nd) harmonic content.And then a new comprehensive inrush recognition method is provided,which is proved valid and feasible by the dynamic simulation and the UHV debugging waves replaying.In order to adapt to the structure and the operating characteristics of the regulator compensation transformer,the protection setting calculation scheme is provided.
引文
[1]刘振亚.特高压电网.北京.中国电力出版社,2005)
[2]国家电网公司科技发展规划(2003-2005-2010),国家电网科[2003]285号)
[3]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
[4]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
[5]董洁,于莉萍,焦志先,等.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
[6]李贵存,刘万顺,刘建飞,等.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
[7]李贵存,刘万顺,滕林,等.基于波形相关性分析的变压器励磁涌流识别新算法.电力系统自动化,2001,25(17):25-287
[8]宗洪良,金华烽,朱振飞,等.基于励磁阻抗变化的变压器励磁涌流判别方法.中国电机工程学报,2001,21(7):91-94
[9]葛宝明,王祥珩,苏鹏声等,电力变压器的励磁涌流判据及其发展方向.电力系统自动化,2003,27(22),1-4
[10]Inagaki,K.Higaki,M Digital Protection Method for Power Transformers Based on an Equivalent Circuit Composed of Inverse Inductance.IEEE Transactions on Power Delivery,1988,3(4):1501-1510
[11]南瑞1000kVRCS-978变压器保护说明书
[12]南自1000kVSGT-756变压器保护说明书
[13]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》,国家电网公司,2008.2
[14]王维俭(Wang Weijian).变压器保护运行不良的反思.电力自动化设备,2001,21(10):1-3
[15]Michel Habib,A Comparative Analysis of Digital Relaying Algorithms for the Differential Protection of Three Phase Transformers.IEEE Transactions on Power Systems.1998.8
[16]B.Kasztenny,E.Rosolowski,M.M.Saha etc.A Multi-criteria Fuzzy Logic Transformer Protection
[17]John H.Brunke,Klaus J.Frohlich.Elimination of Transformer Inrush Currents by Controlled Switching-Part Ⅰ Theoretical Considerations IEEE Transactions on Power Delivery.2001.4,16(2)
[18]John H.Brunke,Klaus J.Frohlich.Elimination of Transformer Inrush Currents by Controlled Switching-Part Ⅱ Application and Performance Considerations IEEE Transactions on Power Delivery.2001.4,16(2)
[19]Glenn Swift,Zhiying Zhang,Inrush Restraint Algorithms for Transformer Differential Relays.IEEE WESCANEX 95 Proceedings.
[20]Kuniaki Yabe.Power Differential Method for Discrimination between Fault and Magnetizing Inrush Current in Transformers.IEEE Transactions on PowerDelivery,1997.7 12(3)
[21]胡玉峰、陈德树.微机变压器保护几种谐波制动比计算的比较.继电器,2007.7
[22]唐跃中,徐进亮,郭勇等.变压器保护中几种励磁涌流判别方法的分析和评价,电力自动化设备,1995.2
[23]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,2003.6,31(6):69-72
[24]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,1998,10,31:19-22华北电力大学工程硕士学位论文:44
[25]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,1998.2,22(2):13-16
[26]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,2003.11,27(22):1-5
[27]姚斌,李永丽.基于波形上下对称系数识别励磁涌流的新原理,2004.4,16(2):32-35
[28]许正亚.几个励磁涌流新判据分析,电力自动化设备2002.1,22(1):23-28
[29]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
[30]He Jiali,Duan Yuqian,Simulating Method of Magnetizing Inrush Current of Power Transformers Using concept of Instantaneous Power.Transactions of Tianjin University 1999.5
[31]特高压交流工程二次设备动模试验研究试验报告
[32]GB 50062-92电力装置的继电保护和自动装置设计规范
[33]国家电力调度通信中心.《国家电网公司十八项电网重大反事故措施(试行)》继电保护专业重点实施要求,2005
[34]毛锦庆、屠黎明、邹卫华等.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.电力系统自动化,2005,29(18):1-2
[2]国家电网公司科技发展规划(2003-2005-2010),国家电网科[2003]285号)
[3]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
[4]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
[5]董洁,于莉萍,焦志先,等.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
[6]李贵存,刘万顺,刘建飞,等.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
[7]李贵存,刘万顺,滕林,等.基于波形相关性分析的变压器励磁涌流识别新算法.电力系统自动化,2001,25(17):25-287
[8]宗洪良,金华烽,朱振飞,等.基于励磁阻抗变化的变压器励磁涌流判别方法.中国电机工程学报,2001,21(7):91-94
[9]葛宝明,王祥珩,苏鹏声等,电力变压器的励磁涌流判据及其发展方向.电力系统自动化,2003,27(22),1-4
[10]Inagaki,K.Higaki,M Digital Protection Method for Power Transformers Based on an Equivalent Circuit Composed of Inverse Inductance.IEEE Transactions on Power Delivery,1988,3(4):1501-1510
[11]南瑞1000kVRCS-978变压器保护说明书
[12]南自1000kVSGT-756变压器保护说明书
[13]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》,国家电网公司,2008.2
[14]王维俭(Wang Weijian).变压器保护运行不良的反思.电力自动化设备,2001,21(10):1-3
[15]Michel Habib,A Comparative Analysis of Digital Relaying Algorithms for the Differential Protection of Three Phase Transformers.IEEE Transactions on Power Systems.1998.8
[16]B.Kasztenny,E.Rosolowski,M.M.Saha etc.A Multi-criteria Fuzzy Logic Transformer Protection
[17]John H.Brunke,Klaus J.Frohlich.Elimination of Transformer Inrush Currents by Controlled Switching-Part Ⅰ Theoretical Considerations IEEE Transactions on Power Delivery.2001.4,16(2)
[18]John H.Brunke,Klaus J.Frohlich.Elimination of Transformer Inrush Currents by Controlled Switching-Part Ⅱ Application and Performance Considerations IEEE Transactions on Power Delivery.2001.4,16(2)
[19]Glenn Swift,Zhiying Zhang,Inrush Restraint Algorithms for Transformer Differential Relays.IEEE WESCANEX 95 Proceedings.
[20]Kuniaki Yabe.Power Differential Method for Discrimination between Fault and Magnetizing Inrush Current in Transformers.IEEE Transactions on PowerDelivery,1997.7 12(3)
[21]胡玉峰、陈德树.微机变压器保护几种谐波制动比计算的比较.继电器,2007.7
[22]唐跃中,徐进亮,郭勇等.变压器保护中几种励磁涌流判别方法的分析和评价,电力自动化设备,1995.2
[23]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,2003.6,31(6):69-72
[24]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,1998,10,31:19-22华北电力大学工程硕士学位论文:44
[25]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,1998.2,22(2):13-16
[26]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,2003.11,27(22):1-5
[27]姚斌,李永丽.基于波形上下对称系数识别励磁涌流的新原理,2004.4,16(2):32-35
[28]许正亚.几个励磁涌流新判据分析,电力自动化设备2002.1,22(1):23-28
[29]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
[30]He Jiali,Duan Yuqian,Simulating Method of Magnetizing Inrush Current of Power Transformers Using concept of Instantaneous Power.Transactions of Tianjin University 1999.5
[31]特高压交流工程二次设备动模试验研究试验报告
[32]GB 50062-92电力装置的继电保护和自动装置设计规范
[33]国家电力调度通信中心.《国家电网公司十八项电网重大反事故措施(试行)》继电保护专业重点实施要求,2005
[34]毛锦庆、屠黎明、邹卫华等.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.电力系统自动化,2005,29(18):1-2
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