摘要
针对配电网中的电压暂降现象,提出了一种基于综合权重的电压暂降严重度多指标评估方法。该方法选取多个评估指标建立评价指标集合,克服了传统评价方法中只考虑供电侧或用电侧中某一方面的缺陷,将两者结合起来使评估结果更加全面;使用基于层次分析法与CRITIC法的综合赋权法为指标赋新权重,既充分考虑了各个评估指标之间的深层内在关联性,同时又能反映他们的相对重要程度,使评估结果更加合理;进行多次蒙特卡洛仿真后计算各节点综合得分,求取网络中薄弱节点的凹陷域交集。最后在Matla中对IEEE 30节点系统进行了仿真验证,结果证明该方法能更真实反映配电网中的实际情况,可以准确有效地识别网络中的薄弱节点和脆弱区域,为电压暂降治理奠定基础。
In view of voltage sag phenomenon in the distribution network,a kind of multi?index evaluation method based on comprehensive weight is proposed in this paper.This method selects multiple evaluation indexes to set up index set,over comes the defects of the traditional evaluation method in which only the defects at the supply side or the electricity side is considered,making evaluation results more comprehensive.It employs analytic hierarchy process(AHP)and the CRITIC method to calculate a new weight,giving full consideration to the deep inner relation between each evaluation index as well as their relative importance,making evaluation results more reasonable.After multiple Monte Carlo simulation,the composite score of each node is calculated and the sag vulnerability area intersection of weak nodes in the network is obtained.Finally,it is proved by the result that this method can accurately and effectively identify weak nodes and weak area in network,and lays the foundation for voltage sag and control.
作者
范文杰
肖湘宁
陶顺
FAN Wenjie;XIAO Xiangning;TAO Shun(North China Electric Power University,Beijing 102206,China)
出处
《电力电容器与无功补偿》
北大核心
2019年第4期137-144,共8页
Power Capacitor & Reactive Power Compensation
关键词
电压暂降
评价指标集合
综合赋权
蒙特卡洛
voltage sag
evaluation index set
comprehensive empowerment
monte carlo
作者简介
范文杰(1994—),女,硕士研究生,研究方向为电能质量、电压暂降分析与治理;肖湘宁(1953—),男,教授,研究方向为新能源电网中的电力电子技术、电力系统电能质量等;陶顺(1972—),女,副教授,研究方向为电能质量分析与控制等技术。
