Electricity load decomposition prototype for household appliances : System Design and Development

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)3158-3163
Journal / PublicationEnergy Procedia
Publication statusPublished - Feb 2019


Title10th International Conference on Applied Energy (ICAE 2018)
CityHong Kong
Period22 - 25 August 2018



The growing interest in green building is driving the development of energy efficiency building models. One of the essential elements is an effective and efficient Energy Management system. Traditionally, the system contains lots of meters measuring each appliance. Non-Intrusive Load Monitoring (NILM) is a technique for estimating power consumption of each appliance by disaggregating the end-use power consumption measured by a single meter. However, existing NILM are facing two main problems: 1) some of the small appliances and the similar appliances cannot have their power consumption estimated, and 2) NILM requires a long learning process, which means that a new learning process might be needed if a new appliance is connected. To tackle these problems, this paper proposes to use Intrusive Signature (IS) and Power Line Communication (PLC) for circuit-level load decomposition. The paper focuses on the development of a device using frequency domain signature as the IS. The prototype is developed and deployed on the circuit. The results show an accuracy between 83% to 93%.

Research Area(s)

  • Circuit Level, Electricity Decomposition, Intrusive Signature, Power Line Communication, Small Appliance

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