Power grid data quality improvement method based on data correlation

The invention provides a power grid data quality improvement method based on data correlation. The power grid data quality improvement method comprises the steps of S1, obtaining a data flow; S2, preprocessing the data; S3, judging whether the data has continuity in time, if yes, skipping to S4, and if not, skipping to S5; S4, judging whether the data has time regularity, if yes, skipping to S6, and if not, skipping to S7; S5, judging whether the missing data scale of the data exceeds a preset threshold value, if yes, skipping to S8, and if not, skipping to S9; S6, complementing the missing data by using the previous corresponding data by using the time correlation; S7, performing interpolation completion on the missing data by utilizing peripheral data of the missing data; S8, directly abandoning the group of data; and S9, carrying out zero setting processing on the missing data. According to the power grid data quality improvement method based on data correlation, the quality of dataacquired by the data sen