李妍;段余平;邱军;熊信艮;尹项根;

• 1:华中科技大学电气与电子工程学院
• 2:武汉钢铁集团公司
• 3:武汉钢铁集团公司
• 4:华中科技大学电气与电子工程学院

摘要(Abstract)：

基于临界距离法原理,提出馈线临界比距的概念,针对几种环网配电网络,讨论了馈线临界比距的计算方法,根据馈线临界比距的数值可分析各出线故障对公共连接点 (point of common coupling,PCC)电压暂降的影响程度以及快速确定导致PCC点严重电压暂降的输电线路。与临界距离法相比,临界比距法避免了临界距离超出线路长度的情况,在确定电压暂降暴露域时物理概念更加清晰。估算结果与实际测量结果的比较证明了该方法的有效性。

关键词(KeyWords)： 电压暂降;环网配网;临界比距法;电能质量

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李妍;段余平;邱军;熊信艮;尹项根;

Email:

DOI: 10.13335/j.1000-3673.pst.2006.11.012

参考文献(References)：

• [1] 韩英铎,严干贵,姜齐荣,等．信息电力与FACTS及DFACTS 技术[J]．电力系统自动化,2000,20(19):1-7． Han Yingduo, Yan Gangui, Jiang Qirong, et al. Electric power in information society and FACTS & DFACTS[J]. Automation of Electric Power Systems, 2000, 20(19): 1-7.
• [2] 肖遥,李澍森．供电系统的电压下凹[J]．电网技术,2001,25(1): 73—77． Xiao Yao, Li Shusen. Voltage dip in power supply network[J]. Power System Technology, 2001, 25(1): 73-77.
• [3] 林海雪．现代电能质量的基本问题[J]．电网技术,2001,25(10): 5-12． Lin Haixue. Main problems of modern power quality[J]. Power System Technology, 2001, 25(10): 5-12.
• [4] 肖湘宁,徐永海．电能质量问题剖析[J]．电网技术,2001,25(3): 66-69． Xiao Xiangning, Xu Yonghai. Power quality analysis and its development[J]. Power System Technology, 2001, 25(3), 66-69.
• [5] 张斌,刘晓川,许之晗．基于变换的电能质量分析方法[J]．电网 技术,2001,25(1):26-29． Zhang Bin, Liu Xiaochuan, Xu Zhihan. Transformation based analysis method of power quality[J]. Power System Technology, 2001, 25(1): 26-29.
• [6] 徐永海,肖湘宁,杨以涵,等．基于dq变换和ANN的电能质量 扰动辨识[J]．电力系统自动化,2001,21(14):24-28． Xu Yonghai, Xiao Xiangning, Yang Yihan, et al. Power quality disturbance identification using dq conversion based neural classifier [J]. Automation of Electric Power systems, 2001, 21(14): 24-28.
• [7] 肖湘宁,徐永海,刘连光．考虑相位跳变的电压暂降动态补偿器 研究[J]．中国电机工程学报,2002,22(1):64—69． Xiao Xiangning, Xu Yonghai, Liu Lianguang. Research on mitigation methods of voltage sag with phase angle jump[J]. Proceedings of the CSEE, 2002, 22(1): 64-69.
• [8] 王克星,宋政湘,陈德桂,等．基于小波变换的配电网络电压暂 降的干扰源辨识[J]．中国电机工程学报,2003,23(6):29-34． Wang Kexing, Song Zhengxiang, Chen Degui, et al. Interference source identification of voltage sag in distribution system based on wavelet transformation[J]. Proceedings of the CSEE, 2003, 23(6): 29-34.
• [9] 王宾,潘贞存,徐丙垠．配电系统电压跌落问题的分析[J]．电网 技术,2004,28(2):56-59． Wang Bin, Pan Zhencun, Xu Bingyin. Analysis of voltage sags in distribution system[J]. Power System Technology, 2004, 28(2): 56-59.
• [10]陶顺,肖湘宁,刘晓鹃．电压暂降对配电系统可靠性影响及其评 估指标的研究[J]．中国电机工程学报,2005,25(21):63—69． Tao Shun, Xiao Xiangning, Liu Xiaojuan. Study on distribution reliability considering voltage sags and acceptable indices[J]. Proceedings of the CSEE, 2005, 25(21): 63-69.
• [11]杨京燕,倪伟,肖湘宁,等．计及电压暂降的配网可靠性评估[J]．中 国电机工程学报,2005,25(18):28—33． Yang Jingyan, Ni Wei, Xiao Xiangning, et al. Reliability evaluation of distribution network considering voltage sags[J]. Proceedings of the CSEE, 2005, 25(18): 28-33.
• [12]王宾,潘贞存,徐文远．配电网络电压跌落幅值估算分析[J]．中 国电机工程学报,2005,25(13):29-34． Wang Bin, Pan Zhencun, Xu Wenyuan. Voltage sags profile estimation for power distribution systems[J]. Proceedings of the CSEE, 2005, 25(13): 29-34.
• [13]李妍,余欣梅,熊信银,等．电力系统电压暂降分析计算方法综 述[J]．电网技术,2004,28(14):74-78． Li Yan, Yu Xinmei, Xiong Xinyin, et al. A survey on calculation and analysis methods of voltage sag[J]. Power System Technology, 2004, 28(14): 74-78.
• [14] Bollen M H J. Method of critical distances for stochastic assessment of voltage sags[J]. IEE Proceedings-Generation, Transmission and Distribution, 1998, 145(1): 70-76.
• [15] Bollen M H J. Fast assessment methods for voltage sags in distribution system[J]. IEEE Trans on Industry Applications, 1996, 32(6): 1480-1487.
• [16] Bollen M H J, Tatjasanant T, Yalcinkaya G. Assessment of the number of voltage sags experienced by a large industrial customer[J]. IEEE Trans on Industry Applications, 1997, 33(6): 1465-1471.