Distribution network parameter identification method and device considering probability distribution

The invention relates to the technical field of power system parameter identification, and discloses a distribution network parameter identification method and device considering probability distribution. According to the method, initial prior probability distribution of distribution network parameters is determined on the basis of a distribution line model and a transformer calculation model, then a loss function is designed in combination with element electrical characteristics on the basis of distribution network user collection system data, and a loss function value is obtained through load flow calculation; and the probability distribution of the distribution network parameters is updated by using the loss function value, and finally, an optimal solution is obtained through iterative calculation, so that accurate identification of the distribution network parameters is realized, and dynamic distribution network parameters considering equipment operation conditions and external influences are obtained. 本申