2026-09-19T13:15:27Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/334422022-01-13T07:54:39Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023col_1721.1_131024
Steven B. Leeb.
Ramsey, Jack S
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Ocean Engineering
2006-07-13T15:24:43Z
2006-07-13T15:24:43Z
2004
2004
http://hdl.handle.net/1721.1/33442
62882344
Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.
Includes bibliographical references (p. 89-90).
The Non-Intrusive Load Monitor (NILM) provides a method of measuring component performance and source power quality through a single point of entry in the power distribution system. A study was performed utilizing the NILM onboard three different ships (along with experimentation in the laboratory) to determine its effectiveness in determining the state of mechanical systems through analysis of electrical power data. Data collected from the Auxiliary Seawater System onboard the USCGC SENECA indicate that the NILM is able to predict several faults (clogged pump inlet strainers, faulty motor/pump coupling, fouled heat exchangers) as well as provide a backup indication of flow levels to heat loads. Data collected from the Sewage System of the SENECA indicate several metrics which can be applied to cycling systems in general to differentiate between periods of heavy usage and fault conditions. Finally, data collected from the Steering System of the SENECA as well as a yard patrol boat operated by the Office of Naval Research shows the potential of the NILM to be used as a control system without the need for separate mechanical transducers.
by Jack S. Ramsey, Jr.
S.M.
Nav.E.
130 p.
7256015 bytes
7261485 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
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
Ocean Engineering.
Electrical Engineering and Computer Science.
Ships Electric equipment
Electric machinery Monitoring
Shipboard applications of non-intrusive load monitoring
Thesis
application/pdf
false
Publication
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