基于扰动功率的电压暂降源方向判断.pdfVIP

第 35 卷 第 9 期 中 国 电 机 工 程 学 报 Vol.35 No.9 May 5, 2015 2202 2015 年 5 月 5 日 Proceedings of the CSEE ©2015 Chin.Soc.for Elec.Eng. DOI ：10.13334/j.0258-8013.pcsee.2015.09.013 文章编号：0258-8013 (2015) 09-2202-07 中图分类号：TM 714.2 基于扰动功率的电压暂降源方向判断 唐轶，文雷，于琪，方永丽，陈奎 ( 中国矿业大学信息与电气工程学院，江苏省 徐州市 221008) A Direction Finder for Voltage Sag Source Based on the Disturbance Power Direction TANG Yi, WEN Lei, YU Qi, FANG Yongli, CHEN Kui (School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221008, Jiangsu Province, China) ABSTRACT: Voltage sag source location is to determine the 时间为 10 [1] ms~1 min 的一种现象 。一些高度自动化 disturbance origins’ relative position of monitoring device. By 设备很容易受到电压暂降的影响，几个周期的电压 analyzing power system faults, which is the main reason 暂降都会对工业生产造成巨大经济损失[2-3] ，据调 resulting in the voltage sags, the direction of the disturbance 查，电能质量问题中电压暂降已成为主要的投诉原 power has been found to be a good indicator of the sag source location. If the disturbance power measured at the monitoring 因，甚至占到投诉比重的 80%。然而，电能是一种 point is positive, a disturbance origin is located at upstream, 由电力部门向电力用户提供，并由供、用电双方共 and if the disturbance power measured at the monitoring point 同保证质量的特殊产品。在导致电能质量下降的责 is negative, a disturbance source is located at downstream. The 任上，供用电双方往往因为缺少对电能质量下降原 calculation methods of the disturbance power are presented 因的准确判断而存在分歧甚