Load decomposition method and system suitable for industrial and commercial users

The invention discloses a load decomposition method and system suitable for industrial and commercial users. The method comprises the following steps: extracting the characteristics of waveform data according to a fixed time period to form a characteristic time sequence; on the basis of DBSCAN clustering, carrying out clustering operation on the preprocessed feature time sequence to obtain a clustering result, extracting sequence points of the preprocessed feature time sequence according to the clustering result, re-establishing a feature difference value time sequence and determining an optimized feature difference value time sequence; performing difference value matching on the optimized feature difference value time sequence, and determining a difference value matching result; mapping start-stop state events belonging to the same type of equipment, optimizing feature dimensions, identifying electrical types of the equipment, determining a load identification result, and establishing an exclusive model feat