摘要
由于当前方法对配电网故障检修点定位精度不高,为此提出基于全景监测的大跨越全域配电网故障检修点定位方法。通过采集大跨越全域配电网故障信息,分析故障信息的谱特征量,计算大跨越全域配电网高维谱的特征估计值;以特征估计值为基础,构建大跨越全域配电网故障检修的全景监测分析模型,提取故障异常电流参数,根据参数提取结果,在全景视觉下实现对大跨越全域配电网故障检修点的准确定位。仿真结果表明,文中方法进行大跨越全域配电网故障检修点定位精度较高,故障检测效果较好,提高了大跨越全域配电网的在线故障监测能力。
Due to the limitaions of current method,including no accuracy in locating the fault repair points of distribution network,a method for locating the fault repair points of large-span distribution network based on panoramic monitoring is proposed.By collecting fault information of the large-span distribution network and analyzing the spectral characteristics of the fault information,the estimated value of the high-dimensional spectrum of the large-span distribution network is calculated.Then,based on the estimated value of the characteristic,the fault maintenance of the large-span distribution network is constructed.Based on the panoramic monitoring and analysis model,the abnormal current parameters of the fault are extracted.According to the parameter extraction results,the accurate positioning of the large-scale global distribution fault inspection point is realized under the panoramic vision.The simulation results show that the method is used to locate the fault inspection points of the large-scale global distribution with higher accuracy and better fault detection effect,which improves the online fault monitoring capability of the large-scale global distribution.
作者
张自强
李玉杰
王栋
延亮
周识远
杨军亭
ZHANG Zi-qiang;LI Yu-jie;WANG Dong;YAN Liang;ZHOU Shi-yuan;YANG Jun-ting(State Grid Gansu Electric Power Company,Lanzhou 730000,China;Electric Power Research Institute of State Grid Gansu Electric Power Company,Lanzhou 730070,China)
出处
《信息技术》
2021年第11期55-59,65,共6页
Information Technology
基金
国网甘肃省电力公司科技项目(522722170006)。
关键词
全景监测
配电网
耦合式融合
谐波阻抗
panoramic monitoring
distribution network
coupling fusion
harmonic impedance