Harmonic approaches to non-intrusive load diagnostics
Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2008.
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
| Published: |
Massachusetts Institute of Technology
2009
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1721.1/44847 |
| _version_ | 1811088045551648768 |
|---|---|
| author | Fuller, Ashley E. (Ashley Eliot) |
| author2 | Robert W. Cox and Steven B. Leeb. |
| author_facet | Robert W. Cox and Steven B. Leeb. Fuller, Ashley E. (Ashley Eliot) |
| author_sort | Fuller, Ashley E. (Ashley Eliot) |
| collection | MIT |
| description | Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2008. |
| first_indexed | 2024-09-23T13:55:23Z |
| format | Thesis |
| id | mit-1721.1/44847 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T13:55:23Z |
| publishDate | 2009 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/448472019-04-12T09:55:29Z Harmonic approaches to non-intrusive load diagnostics Fuller, Ashley E. (Ashley Eliot) Robert W. Cox and Steven B. Leeb. System Design and Management Program. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. System Design and Management Program. Mechanical Engineering. System Design and Management Program. Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2008. Includes bibliographical references (p. 88-90). The 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. by Ashley E. Fuller. S.M. Nav.E. 2009-03-16T19:50:40Z 2009-03-16T19:50:40Z 2008 2008 Thesis http://hdl.handle.net/1721.1/44847 301595521 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 90 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. System Design and Management Program. Fuller, Ashley E. (Ashley Eliot) Harmonic approaches to non-intrusive load diagnostics |
| title | Harmonic approaches to non-intrusive load diagnostics |
| title_full | Harmonic approaches to non-intrusive load diagnostics |
| title_fullStr | Harmonic approaches to non-intrusive load diagnostics |
| title_full_unstemmed | Harmonic approaches to non-intrusive load diagnostics |
| title_short | Harmonic approaches to non-intrusive load diagnostics |
| title_sort | harmonic approaches to non intrusive load diagnostics |
| topic | Mechanical Engineering. System Design and Management Program. |
| url | http://hdl.handle.net/1721.1/44847 |
| work_keys_str_mv | AT fullerashleyeashleyeliot harmonicapproachestononintrusiveloaddiagnostics |