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dc.contributor.authorFuller, Ashley E.
dc.date.accessioned2012-03-14T17:39:08Z
dc.date.available2012-03-14T17:39:08Z
dc.date.issued2008-06
dc.identifier.urihttp://hdl.handle.net/10945/3702
dc.descriptionCIVINS (Civilian Institutions) Thesis documenten_US
dc.descriptionApproved for public release, distribution unlimiteden_US
dc.description.abstractThe Non-Intrusive Load Monitor (NILM) is a system that monitors, records and processes voltage and current measurements to establish the operating characteristics of individual loads on a load center from a single aggregate measurement. The NILM can also be used to actively monitor degradation or diagnose specific system failures. Current NILM research conducted at the Massachusetts Institute of Technology's Laboratory for Electromagnetic and Electronic Systems (LEES) is exploring the application and expansion of NILM technology for the use of monitoring a myriad of electromechanical loads. This thesis presents a fundamental guide to understanding NILM operation using laboratory bench testing and demonstrates its potential to detect an array of electric machine failures before they become catastrophic. The NILM's ability to the monitor the current spectrum of electric machines can be used to immediately diagnose multiple common system casualties and detect unusual system operation. Clean current spectrum regions can be exploited by selecting induction machine design characteristics that result in eccentric modulation frequencies occurring in areas free of supply frequency harmonics. . Current spectrum analysis was used to demonstrate the NILM's potential to monitor multiple machines from an aggregate source and discuss intersystem impedances. It can be shown that multiple machines with slightly varied physical characteristics, such as induction motor rotor slots, coupled with using clean current spectral regions support automated diagnostic system development. Measurements and experimentation were conducted in the LEES laboratory and the Industrial Support Center electric shop, Boston.en_US
dc.format.extent90 p. : ill.en_US
dc.titleHarmonic approaches to non-intrusive load diagnosticsen_US
dc.typeThesisen_US
dc.contributor.corporateMassachusetts Institute of Technology.
dc.description.funderContract number: N62271-97-G-0026.en_US
dc.description.funderCIVINSen_US
dc.description.serviceUS Navy (USN) (civilian) author.en_US
dc.identifier.oclc463692
etd.verifiednoen_US


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