中文摘要：

针对目前低压配网台区的电压评估指标不完善和评估过程粗略的问题,提出了考虑沿线电压特性的电压评估指标及相应的电压改善潜力定量评估方法。简要分析现有的电压改善措施并提出电压指标改善率的概念,通过潮流计算获取指标改善率的数值。利用改进序关系算法确定各电压指标改善率权重,进而通过加权计算得到整个台区电压改善率用于评估台区电压改善潜力。算例分析结果表明,所提方法能有效地预先评估台区电压改善潜力。

英文摘要：

Aiming at the imperfect evaluation index and rough evaluation procedures,a voltage evaluation index considering the voltage characteristic along line and a quantitative evaluation method of regional voltage improvement potential are proposed for the low-voltage distribution network. The existing voltage improvement measures are briefly analyzed,the concept of voltage index improvement rate is introduced,and the way to obtain the rate by power flow calculation is proposed. The improved rank correlation method is applied to determine the improvement rate weights of different voltage evaluation points along line and the weighted calculation is then applied to get the regional improvement rate,which is used to evaluate the voltage improvement potential of whole low-voltage distribution network region. The results of case calculation show that the proposed method can effectively evaluate the regional voltage improvement potential of low-voltage distribution network.