Low Complexity Event Detection Algorithm for Non- Intrusive Load Monitoring Systems

In order to tackle today's energy and sustainability issues, there are two paths to be followed by the world community. Either they have to establish new generation plants with an expense of millions of dollars or to look deeper into the existing system to design and deploy techniques that can lead to a significant amount of energy saving. Today, researchers are extensively working towards energy efficiency and conservation via developing different techniques. In the said domain, energy monitoring is one of the key techniques which is an attractive and popular research topic in the field of sustainable energy. It is single-point sensing or commonly known as Non-Intrusive Load Monitoring (NILM) that is used to extract the appliance level energy consumption. For a NILM system, event detection plays a key role and is a pre-requisite for the later stages of the system. In this paper a simple and low complexity event detection algorithm is proposed. Digital simulation and sensitivity studies have been carried out using real world data to check the performance and sensitivity of the proposed algorithm. Furthermore, the results of the proposed algorithm are compared with the existing event detection algorithm for evaluation purposes.