Research On The Application Of Double Ratio Method In The Line Loss Calculation And Analysis System

Line loss ratio is the primary comprehensive technology economic indicator of power supply enterprise which presents the comprehensive level of enterprises in aspects of grid layout and design, production technology, management and so on. Based on the calculation of theory and statistic line loss, this article uses multinomial factors based double ratios to analysis, and takes some proper measures to low down the line loss, then get the purpose of line loss ratio reduction.According to the features of distribution grid, it analyses and realizes the forward-back substitution based on branch current, calculating the distribution grid's theory line loss, and builds the calculation model about single line, T connection and transformer, which fractionalized the calculation of statistic line loss and prepared for the double ratio analysis. Aiming at the problem of line loss management that the data quantity is too big and there are lots of effect factors of line loss indicators, this article studies the double ratio analysis methods based on the comparison of multinomial factors, and it improves the comprehensive line loss analysis and direction of line loss reduction methods.