| 一种提高单端暂态量保护内部故障正确判别率的方法 |
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| 引用本文： | 任晓侠,罗四倍,马守峰,贠保记.一种提高单端暂态量保护内部故障正确判别率的方法[J].电力系统保护与控制,2011,39(8):86-89. |
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| 作者姓名： | 任晓侠 罗四倍 马守峰 贠保记 |
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| 作者单位： | 1. 西安供电局，陕西 西安 710032;2. 河南科技大学车辆与动力工程学院，河南 洛阳 471003;3.中煤平朔潘家窑煤业公司，山西 朔州 036006;4. 西安西瑞保护控制设备有限责任公司研究所，陕西 西安 710075 |
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| 摘 要： | 鉴于实际的输电系统和故障情况较复杂，现有的输电线路单端暂态量保护方案都难以全线速动。在阐述单端暂态量保护原理的基础上，根据相同类型故障产生的行波在线路上传播模式相似的特征，从整定原则的角度提出了以正向外部故障可靠不动作、按故障类型分别整定的方法来提高单端暂态量保护对于内部故障的正确判别率。进行了500 kV超高压输电系统的ATP仿真测试，结果表明该方法能够有效提高单端暂态量保护的内部故障正确判别率。
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| 关 键 词： | 输电线路 超高速保护 单端暂态量保护 整定值 行波 小波变换 |
A method to improve internal-fault right discriminating rate of non-unit transient based protection |
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| REN Xiao-xia,LUO Si-bei,MA Shou-feng,YUN Bao-ji.A method to improve internal-fault right discriminating rate of non-unit transient based protection[J].Power System Protection and Control,2011,39(8):86-89. |
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| Authors: | REN Xiao-xia LUO Si-bei MA Shou-feng YUN Bao-ji |
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| Affiliation: | REN Xiao-xia1,LUO Si-bei2,MA Shou-feng3,YUN Bao-ji4(1.Xi'an Power Supply Company,Xi'an 710032,China,2.School of Vehicle & Motive Power Engineering,Henan University of Science & Technology,Luoyang 471003,3.China Coal Pingshuo Coal Co.Ltd,Shuozhou 036006,4.Xi'an Xirui Protection and Control Co.Ltd,Xi'an 710075,China) |
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| Abstract: | Because practical transmission systems and fault situations are rather complex,non-unit transient based protection of transmission line is difficult to reliably protect the whole line.On the basis of illustrating the principle of non-unit transient based protection,according to the characteristic that the transmitting modes of the traveling waves generated by the same fault type in transmission line are similar,the method to improve internal-fault right discriminating rate of non-unit transient based protec... |
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| Keywords: | transmission line ultra-high-speed protection non-unit transient based protection settings traveling wave wavelet transform |
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