平均电流损耗时间法在配网线损计算中的应用

Energy Losses Estimation Using Equivalent Time of Average Current Loss Method

配电网电能损失率是供电企业非常重要的技术经济综合性指标。本文采用平均电流损耗时间法对配电网的线损进行计算,并对最大负荷损耗时间法、损失因数法、方均根电流法和平均电流法的数学推导公式进行了物理概念的介绍。平均电流损耗时间法算法简单,易于实现,去除和弱化了假定条件,有利于提高线损计算精度。

Power distribution network loss rate is a very important comprehensive technical and economic indicator in power enterprises. An alternative approach is proposed to evaluate energy losses estimation in electric power distribution networks, relying on the average current instead of the maximum demand. The physical conceptual analysis on the mathematical derivation of the equivalent hours of maximum loss, loss factor, rms current and average-current methods is introduced. The equivalent time of average current loss method can be regarded as an effective method to enhance the quality of information in loss estimation analysis. It eliminates and weakens the assumed conditions. Furthermore, it is helpful to improve the precision of energy losses estimation.