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J4  2013, Vol. 47 Issue (8): 1411-1417    DOI: 10.3785/j.issn.1008-973X.2013.08.013
电气工程     
基于暂态主频实时估算的快速距离保护
张波, 何奔腾, 王慧芳
浙江大学 电气工程学院,浙江 杭州 310027
Fast distance protection based on real-time estimation of transient main frequency
ZHANG Bo, HE Ben-teng, WANG Hui-fang
College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China
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摘要:

为提高继电保护的动作性能,针对故障时高频噪声分量中暂态主频分量占主导的特点,提出一种实时估算暂态主频的方法,并应用于主频模型的最小二乘算法;根据算法模型中预设暂态主频与实际暂态主频的正负误差导致算法误差大致呈现符号相反的特性,提出一种新的自适应距离保护方案,该方案采用对多组暂态主频模型算法结果相与构成保护输出.仿真结果表明,该方案能够有效地降低区外故障超越程度,提高距离保护范围,同时能够在区内故障时提高保护动作速度.

Abstract:

The component of transient main frequency plays a leading role in the high frequency noises during the fault. To improve operating performance of relay protection, a real-time estimation method of transient main frequency was put forward, and applied to the least square algorithm with model of main frequency. The phenomenon was obtained that the positive and negative error between true transient main frequency and the presetting one in the algorithm model cause the algorithm error sign approximately inverse. A new adaptive distance protection scheme was proposed by making results of several transient main frequency model algorithms composing AND gate as the protection output. Simulation results indicate that this scheme can effectively minish overreach range for external faults and increace the reach of distance protection. Furthermore,it can quicken the operating speed of protection for internal faults.

出版日期: 2013-08-01
:  TM 77  
通讯作者: 何奔腾,男,教授,博导.     E-mail: hebt@zju.edu.cn
作者简介: 张波(1983—),男,博士生,主要从事电力系统继电保护的研究.E-mail: zjuee108@gmail.com
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引用本文:

张波, 何奔腾, 王慧芳. 基于暂态主频实时估算的快速距离保护[J]. J4, 2013, 47(8): 1411-1417.

ZHANG Bo, HE Ben-teng, WANG Hui-fang. Fast distance protection based on real-time estimation of transient main frequency. J4, 2013, 47(8): 1411-1417.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.08.013        http://www.zjujournals.com/eng/CN/Y2013/V47/I8/1411

[1] 舒印彪,胡毅.交流特高压输电线路关键技术的研究及应用[J].电机工程学报,2007,27(3):1-7.

SHU Yin-biao,HU Yi.Research and application of the key technologies of UHV AC transmission line [J].Proceedings of the CSEE,2007,24(36): 1-7.

[2] 舒印彪,张文亮.特高压输电若干关键技术研究[J].电机工程学报,2007,27(31): 16.

SHU Yin_-biao,ZHANG Wen-liang.Research of key technologies of UHV transmission [J].Proceedings of the CSEE,2007,24(31): 16.

[3] 贺家李,李永丽,郭征,等.特高压输电线继电保护配置方案(I):特高压输电线的结构与运行特点[J].电力系统自动化,2002,26(23):16.

HE Jia-li,LI Yong-li,GUO Zheng,et a1.Relay protection for UHV transmission lines(I):Construction and operation characteristics [J].Automation of Electric Power System,2002,26(23): 16.

[4] 贺家李,李永丽,李斌,等.特高压输电线继电保护配置方案(II):保护配置方案[J].电力系统自动化,2002,26(24):16.

HE Jia-li,LI Yong-li,LI Bin,et a1.Relay protection for UHV transmission lines(II):Disposition of relay protection
 [J].Automation of Electric Power System,2002.26(24): 16.

[5] DOMMEL H W. Electromagnetic transients program rule book[M]. Portland, Oregon: Bonneville Power Administration,1982: 132-154.

[6] BROOKS A, JR W. Distance relaying using least-squares estimates of voltage, current and impedance[C] ∥ Proceedings of the IEEE PICA Conference. Toronto:[s. n.], 1977: 394-402.

[7] 陈德书.计算机继电保护原理与技术[M].北京:中国电力出版社,1998: 78-81.

[8] 张哲,陈德树.递推最小二乘算法在微机距离保护中的应用研究[J]. 电力系统自动化,1991,15:45.

ZHANG Zhe,CHEN De-shu.The research on the application of the recursive least-squares algorithm in the microprocessor distance relay [J].Automation of Electric Power Systems,1991,15: 45.

[9] 黄瀛,何奔腾.基于高频噪声主频估计的自适应最小二乘算法[J].中国电机工程学报,2004,24(7): 68-73.

HUANG Ying,HE Ben-teng.High frequency noise main frequency evaluation based adaptive least error square algorithm [J].Proceedings of the CSEE,2004,24(7): 68-73.

[10] 张波,何奔腾.特高压输电线路暂态特征估算方法[J].电力自动化设备,2010,30(5): 1-6.

ZHANG Bo,HE Ben-teng.Estimation of transient character for UHV transmission line [J].Electric Power Automation Equipment,2010,30(5): 1-6.

[11] 胡广书.数字信号处理——理论、算法与实现[M].北京:清华大学出版社,1997: 81-94.

[12] 黄瀛,何奔腾.继电保护中最小二乘算法的最佳模型[J].电力系统自动化,2004,28(9): 31-35.

HUANG Ying,HE Ben-teng..Study on the optimal noise model of least error square algorithm for relay protection [J].Automation of Electric Power Systems,2004,28(9): 31-35.

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