配电网消弧选线技术的研究
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摘要
本文针对配电网接地方面的一些重要问题开展研究,内容涉及中性点接地方式、消弧线圈、小电流选线及相关设备的研制多个方面。在中性点接地方式选择问题上,从接地故障、线路保护、过电压三方面阐明了中性点谐振接地方式的优势。谐振接地方式的优势取决于消弧线圈的性能,电子式多分接头自动调谐消弧线圈集合了传统消弧线圈与电力电子技术的优点,是新型消弧设备的一个发展方向。该课题以消弧和选线并重的角度去设计新型消弧线圈,提出了改进型残流增量法的选线方法,使消弧线圈在消弧与选线两方面都能取得良好效果。新型消弧线圈的推广需要一个过渡,为了解决现场传统消弧线圈的选线问题,文章最后设计了残流增量发生装置,作为新型消弧线圈的辅助设备,配合传统消弧线圈完成消弧选线功能。
论文通过理论分析、计算机仿真、硬件研制和实际实验多种形式阐明、解决上述问题,为配电网中性点谐振接地的采用提供了一套较为全面的解决方案,具有较强的工程实用性。
This paper studies some important problems on neutral point earthing in distribution system. Itscontent refers neutral point treatment, arc-suppression coil, fault line detecting, and the designs ofrelated equipment. On the problem about neutral point treatment, it illuminates the advantage ofResonant Earthed Neutral System (RENS) through the aspects of earth fault, line protection andover voltage. The advantage of RENS lies on the performance of arc-suppression coil. Theelectronic tapping point & automatic tuning arc-suppression coil aggregates the advantages oftraditional coil and electronic technology, which is an orientation of new type coils. In this paper,the new type coil’s design gives attention to both extinction of arc and fault line detecting, and thepaper brings an amended residual current increment, which is a fault line detecting method andmakes the coil obtain better effects on both extinction of arc and fault line detecting. In the end, itdesigns equipment for engendering residual current increment, to work with traditional coils inpractical application as a transient way to the new type coil.
The paper illuminates and resolves the problems above through theoretic analysis, computersimulation, hardware design,and physical experimentation, which brings an integral solution foradopting RENS, and is full of practicality.
论文通过理论分析、计算机仿真、硬件研制和实际实验多种形式阐明、解决上述问题,为配电网中性点谐振接地的采用提供了一套较为全面的解决方案,具有较强的工程实用性。
This paper studies some important problems on neutral point earthing in distribution system. Itscontent refers neutral point treatment, arc-suppression coil, fault line detecting, and the designs ofrelated equipment. On the problem about neutral point treatment, it illuminates the advantage ofResonant Earthed Neutral System (RENS) through the aspects of earth fault, line protection andover voltage. The advantage of RENS lies on the performance of arc-suppression coil. Theelectronic tapping point & automatic tuning arc-suppression coil aggregates the advantages oftraditional coil and electronic technology, which is an orientation of new type coils. In this paper,the new type coil’s design gives attention to both extinction of arc and fault line detecting, and thepaper brings an amended residual current increment, which is a fault line detecting method andmakes the coil obtain better effects on both extinction of arc and fault line detecting. In the end, itdesigns equipment for engendering residual current increment, to work with traditional coils inpractical application as a transient way to the new type coil.
The paper illuminates and resolves the problems above through theoretic analysis, computersimulation, hardware design,and physical experimentation, which brings an integral solution foradopting RENS, and is full of practicality.
引文
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[2] Edward. Owen. The Historical Development of Neutral-Grounding Practices. IEEEIndustryApplications Magazine, 1997: 10~11
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[9] 刘明岩.配电网中性点接地方式的选择.电网技术,2004,28(16):86~88
[10] 陆国庆,姜新宇,等.一种新型配电网中性点接地方式的研究与实践.电力设备,2005,6(4):8~9
[11] 要焕年,曹梅月.电缆网络的中性点接地问题.电网技术,2003,27(2)
[12] 李有铖,廖建平.10KV 小电阻接地系统运行分析与评价.中国电力,2003,36(5)
[13] 平绍勋,石健.10KV 配网小电阻接地运行分析.高电压技术,2002,28(9)
[14] 罗思需,高梯才.对 35kV 及以下线路保护重合闸方式的改进方案.继电器,2006,34(2)
[15] 许海之,李庚银,彭咏龙.用户电力技术与暂态电能质量的改善.华北电力大学学报,2002,29(4):30~31
[16] 曹承宗.城网 10KV 系统中性点接地方式若干问题的探讨.电器技术,1995,(3)
[17] 李福寿.中性点非有效接地电网的运行.水利电力出版社,1993:77~81
[18] 李润先.中压电网系统接地实用技术.中国电力出版社,2002:121~126
[19] 陈维贤.内部过电压基础.电力工业出版社,1981:167~172
[20] 李润先.中压电网系统接地实用技术.中国电力出版社,2002:171~215
[21] 龙小平,叶一林.连续可调消弧线圈.电网技术,1997,21(2)
[22] 刘金旭.变压器式可控电抗器型消弧线圈的谐波分析及抑制.高压电器,2005,41(4)
[23] S. Sugimoto, S. Neo, H. Arita, et al. Thyristor Controlled Ground Fault CurrentLimiting System for Ungrounded Power Distribution System. IEEE Transaction onPower Delivery, 1996, 11( 2): 940~945
[24] 连洪波.谐振接地电网单相接地故障消弧及选线技术一体化研究:[博士学位论文],华北电力大学,2005
[25] 梁延贵.遥控电路-可控硅触发电路-语音电路分册(现代集成电路实用手册).科学技术文献出版社:151~153
[26] 莫正康.晶闸管变流技术.机械工业出版社,1985
[27] 贺家李,宋从矩编.电力系统继电保护原理.水利电力出版社,1980:52~61
[28] 李冬辉,史临潼.非直接接地系统单相接地故障选线方法综述.继电器,2004,32(18)
[29] 肖白,穆钢.配电网单相接地故障选线方案.继电器,2005,33(24)
[30] 陈奎,唐轶,孟庆海.谐振接地电网单相接地故障选线研究.中国矿业大学学报,2006,35(1)
[31] Masato Togami, Norihiro Abe, Tadahiro Kitahashi, et al. On the application of amachine learning technique to fault diagnosis of power distribution lines. IEEETransaction on Power Delivery, 1995, 10( 4): 1927~1936
[32] 蔡旭,于乐中.补偿电网增量函数法接地选线原理及应用.上海交通大学学报,2004,38(8)
[33] 齐郑,刘宝柱,王璐.广域残流增量选线方法在辐射状谐振接地系统中的应用.电力系统自动化.2006,30(3):84~86
[34] 郝玉山,杨以涵,任元恒,等.小电流接地微机选线的群体比幅比相原理.电力情报,1994,2:15~17
[35] 尹克宁.变压器设计原理.中国电力出版社,2003
[36] [苏]布尔佳可夫.变压器计算.水利水电出版社,1959
[2] Edward. Owen. The Historical Development of Neutral-Grounding Practices. IEEEIndustryApplications Magazine, 1997: 10~11
[3] 刘健.城乡电网建设与改造指南.中国水利水电出版社,2001:47~51
[4] 李景禄.实用配电网技术.中国水利水电出版社,2006:99~101
[5] 要焕年,曹梅月.电力系统谐振接地.中国电力出版社,2000
[6] Jim Burke, Mike Marshall.Distribution System Neutral Grounding.?2001 IEEE
[7] A Newbould, K Chapman.Improving UK Power Quality With Arc SuppressionCoil.Developments in Power System Protection, Conference Publication No. 479 ?IEE,2001: 478~490
[8] 徐纪法.城市中低压配电网及其发展理念.中国电力,2001,34(2)
[9] 刘明岩.配电网中性点接地方式的选择.电网技术,2004,28(16):86~88
[10] 陆国庆,姜新宇,等.一种新型配电网中性点接地方式的研究与实践.电力设备,2005,6(4):8~9
[11] 要焕年,曹梅月.电缆网络的中性点接地问题.电网技术,2003,27(2)
[12] 李有铖,廖建平.10KV 小电阻接地系统运行分析与评价.中国电力,2003,36(5)
[13] 平绍勋,石健.10KV 配网小电阻接地运行分析.高电压技术,2002,28(9)
[14] 罗思需,高梯才.对 35kV 及以下线路保护重合闸方式的改进方案.继电器,2006,34(2)
[15] 许海之,李庚银,彭咏龙.用户电力技术与暂态电能质量的改善.华北电力大学学报,2002,29(4):30~31
[16] 曹承宗.城网 10KV 系统中性点接地方式若干问题的探讨.电器技术,1995,(3)
[17] 李福寿.中性点非有效接地电网的运行.水利电力出版社,1993:77~81
[18] 李润先.中压电网系统接地实用技术.中国电力出版社,2002:121~126
[19] 陈维贤.内部过电压基础.电力工业出版社,1981:167~172
[20] 李润先.中压电网系统接地实用技术.中国电力出版社,2002:171~215
[21] 龙小平,叶一林.连续可调消弧线圈.电网技术,1997,21(2)
[22] 刘金旭.变压器式可控电抗器型消弧线圈的谐波分析及抑制.高压电器,2005,41(4)
[23] S. Sugimoto, S. Neo, H. Arita, et al. Thyristor Controlled Ground Fault CurrentLimiting System for Ungrounded Power Distribution System. IEEE Transaction onPower Delivery, 1996, 11( 2): 940~945
[24] 连洪波.谐振接地电网单相接地故障消弧及选线技术一体化研究:[博士学位论文],华北电力大学,2005
[25] 梁延贵.遥控电路-可控硅触发电路-语音电路分册(现代集成电路实用手册).科学技术文献出版社:151~153
[26] 莫正康.晶闸管变流技术.机械工业出版社,1985
[27] 贺家李,宋从矩编.电力系统继电保护原理.水利电力出版社,1980:52~61
[28] 李冬辉,史临潼.非直接接地系统单相接地故障选线方法综述.继电器,2004,32(18)
[29] 肖白,穆钢.配电网单相接地故障选线方案.继电器,2005,33(24)
[30] 陈奎,唐轶,孟庆海.谐振接地电网单相接地故障选线研究.中国矿业大学学报,2006,35(1)
[31] Masato Togami, Norihiro Abe, Tadahiro Kitahashi, et al. On the application of amachine learning technique to fault diagnosis of power distribution lines. IEEETransaction on Power Delivery, 1995, 10( 4): 1927~1936
[32] 蔡旭,于乐中.补偿电网增量函数法接地选线原理及应用.上海交通大学学报,2004,38(8)
[33] 齐郑,刘宝柱,王璐.广域残流增量选线方法在辐射状谐振接地系统中的应用.电力系统自动化.2006,30(3):84~86
[34] 郝玉山,杨以涵,任元恒,等.小电流接地微机选线的群体比幅比相原理.电力情报,1994,2:15~17
[35] 尹克宁.变压器设计原理.中国电力出版社,2003
[36] [苏]布尔佳可夫.变压器计算.水利水电出版社,1959