Non-intrusive load decomposition method and system

The invention discloses a non-intrusive load decomposition method and system, and the method is characterized in that the method comprises the following steps: obtaining the load data of electric equipment, and building a load database based on the load data; the method comprises the following steps: acquiring real-time power consumption data of a user side, establishing a power consumption load curve based on the real-time power consumption data, performing feature extraction on the power consumption load curve along a time direction, screening a continuous time slice of which the extracted feature is greater than a set value, and taking the continuous time slice as a load to be identified; and screening out the load data having the same characteristics as the to-be-identified load from the load database, and taking the electric equipment and the operation state corresponding to the load data as an identification result of the to-be-identified load. The method is accurate in identification result, simple in