Cable power distribution network estimation method based on credibility

The invention relates to a cable power distribution network estimation method based on credibility. The method includes: firstly, estimating load data quality, calculating according to a set credibility scoring rule to obtain a credibility value of load data acquired by an automatic power distribution system; and secondly, correcting bad data according to the credibility value obtained by calculation, estimating 'old data' or unacquired data, re-estimating load data quality after correction, continuing to perform state estimation when the integral credibility is improved to some extent, and stopping cycling when the integral credibility cannot be improved. By means of multi-time cyclic estimation, data quality and credibility can be effectively improved to make up for insufficiency of the automatic power distribution system in terms of the type and number of measuring devices and limits on communication transmission means.