Load identification system for residential applications based on the NILM technique

In this paper we mainly focus on monitoring the energy consumption of individual electrical appliances connected to a home. The adopted system measures the total electric current and extracts the absorption of each individual device, using a NILM algorithm (Non Intrusive Load Monitoring). The characteristics of a new NILM algorithm have been identified by comparing the different load disaggregation techniques. It was initially verified with aggregate data available online. Successively, measurements were performed using a suitable system that reproduces a typical domestic electrical wiring with connected household appliances was implemented. The paper describes the measurement system, including the NILM algorithm. Additionally, some performance evaluation results are also reported in the paper.