A Theoretical Line Loss Calculation Model Based on Analytic Hierarchy Method

Wind power and photovoltaic output are characterized by random volatility and large uncertainty. As a result, the theoretical line loss of the distribution network will produce new unknown line loss and there is a large error in the calculation. In order to calculate and predict the theoretical line loss more accurately, a lean calculation method of line loss is proposed, which takes into account many factors, such as temperature rise compensation, corona loss, load rate and wind-wind complementarity. The influence weight of each factor on the calculation of theoretical line loss is compared by analytic hierarchy process (AHP), and the variation of theoretical line loss under different influencing factors is calculated respectively, and the weighted sum of them is summed. The comprehensive line loss obtained by this method is taken as a new basis, which is more consistent with the actual situation of line loss. Compared with the traditional average daily load curve method or daily maximum load method, the proposed method is more comprehensive in consideration of the situation and more accurate in the calculation of theoretical line loss.