文章摘要
梁晨光,王宾,李凤婷,等.高压线路单相弧光接地对数仿真模型数据修正算法[J].电力系统自动化. DOI: 10.7500/AEPS20180717008.
LIANG Chenguang,WANG Bin,LI Fengting, et al.Data Correction Algorithm of Logarithmic Simulation Model for Single-phase Arc Grounding Fault on High-voltage Transmission Line[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20180717008.
高压线路单相弧光接地对数仿真模型数据修正算法
Data Correction Algorithm of Logarithmic Simulation Model for Single-phase Arc Grounding Fault on High-voltage Transmission Line
DOI:10.7500/AEPS20180717008
关键词: 输电线路  高阻接地故障  电弧动态模型  伸缩因子  数据修正
KeyWords: transmission line  high-impedance grounding fault  dynamic arc model  deformation factor  data correction
上网日期:2019-01-11
基金项目:
作者单位E-mail
梁晨光 新疆大学电气工程学院 lcgzzu@163.com 
王宾 清华大学电机系电力系统及发电设备安全控制和仿真国家重点试验室 binw_ee@mail.tsinghua.edu.cn 
李凤婷 新疆大学电气工程学院 xjlft2009@sina.com 
谢民 国网安徽省电力公司调度中心
国网安徽省电力公司调度中心 
xiemin@ah.sgcc.com.cn 
王海港 国网安徽省电力公司调度中心
国网安徽省电力公司调度中心 
wanghg8016@ah.sgcc.com.cn 
摘要:
      受污闪、山火等因素影响,中性点接地高压输电线路易发生单相弧光高阻接地故障,但总体来讲现场获取的故障数据仍然严重不足,制约了弧光接地故障检测及保护技术的研究。人工弧光高阻接地故障实验成本较高,也难以普及应用。针对该问题,文中基于可直接表征电弧燃弧V-I特征的对数电弧模型,详细分析了该模型仿真数据和录波数据的差异性,针对该模型所表征出的电弧V-I特征未能反映实测录波数据中V-I相角差的问题,提出了一种对该模型仿真数据进行修正的数据处理算法,修正后数据波形具有和真实录波V-I曲线更为接近的外特征,为后续弧光高阻接地故障的研究提供了数据支撑。
Abstract:
      Due to the impacts of insulator flashover and mountain fire, the single-phase arc high-impedance grounding fault often occurs on the high-voltage transmission line with neutral point grounding. But up to now, only limited field fault data are available, which limits the correlative research of fault detection and protection. The experiment cost of artificial arc high-impedance grounding fault is high, so it is difficult to popularize the application. Based on the logarithmic arc model that can directly characterize the arcing V-I feature, this paper analyzes the difference between simulation data and record data. A data correction algorithm of the simulation model is proposed to solve the problem that the arcing V-I feature from the simulation model cannot reflect the difference between phase angles of V and I from the measured record data. The waveforms of corrected data have more similar external characteristics to the real record V-I curves, which provides data support for the follow-up study of arc high-impedance grounding fault.
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