NDLI: Phase noise as power characteristic of individual appliance for non-intrusive load monitoring

Content Provider	IET Digital Library
Author	Lee, D.
Abstract	Phase noise, a unique characteristic of electrical appliances, for non-intrusive load monitoring (NILM) is proposed. NILM is a technique, which can distinguish the power consumption of an individual electrical appliance, without requiring the installation of sensors on the appliance, reducing the number of sensors required in an energy management system. It utilises the previously-recorded power supply characteristics of individual appliances and measures the changes in the bus voltage or current, which provide power supply to several appliances, thereby distinguishing the operational appliances without direct measurement. Considering electrical appliances that can be commonly found in a laboratory, such as an electric drill, soldering iron, and light bulb, the authors found that, when each was turned on, the current at an offset of 5 Hz from the centre frequency of 60 Hz was 61.4, 18.8, and 6.2 mA for each appliance, respectively. As each appliance was turned on in the sequence, the bus current providing electrical energy to all three appliances was measured to be 60.4, 11.1, and 5.7 mA, respectively. Thus, it was experimentally confirmed that the current at frequencies near the centre frequency, i.e. the phase noise, can be used for NILM.
Starting Page	993
Ending Page	995
Page Count	3
ISSN	00135194
Volume Number	54
e-ISSN	1350911X
Issue Number	Issue 16, Aug (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/54/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2018.5331
Journal	Electronics Letters
Publisher Date	2018-07-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bus Voltage Measurement Current 11.1 MA Current 18.8 MA Current 5.7 MA Current 6.2 MA Current 60.4 MA Current 61.4 MA Current Measurement Domestic Appliances Electric Current Measurement Electric Drill Electric Noise And Interference Measurement Electric Noise Measurement Electrical Appliances Electrical Energy Electrical/electronic Equipment Energy Management System Energy Utilisation Frequency 60.0 Hz Light Bulb Measurement of Basic Electric And Magnetic Variables NILM Technique Nonintrusive Load Monitoring Phase Noise Power Characteristic Power Consumption Power Supply Characteristic Sensor Soldering Iron Voltage Measurement
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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