Basic Summary of Non-intrusive Load Monitoring

Abstract

Non-intrusive load monitoring(NILM), regarded as the key content of intelligent electricity technology system, can obtain electricity composition details on the premise of guaranteeing users’ privacy. It is of great significance to users and state grid company. This paper summarizes basic principles and typical framework of NILM. Feature extraction and load decomposition are introduced in detail. Load feature is introduced from steady-state and transient load feature. The basic procedure of load decomposition algorithm is given. This paper lays a foundation for the further NILM research and looks forward to the research direction in the future.