Instrumentation for High Performance Nonintrusive Electrical Load Monitoring

[+] Author and Article Information
S. R. Shaw, C. B. Abler, R. F. Lepard, D. Luo, S. B. Leeb, L. K. Norford

Massachusetts Institute of Technology, LEES Laboratory, Cambridge, MA 02139

J. Sol. Energy Eng 120(3), 224-229 (Aug 01, 1998) (6 pages) doi:10.1115/1.2888073 History: Received March 01, 1998; Revised May 01, 1998; Online February 14, 2008


This paper reviews the design and implementation of hardware and software tools for nonintrusive electrical load monitoring. Estimates of spectral content in measured waveforms can be used to determine in real time the operating schedule of loads at a target site. Techniques for transient event detection are reviewed. These techniques can detect the turn-on and turn-off transients of individual loads, and can be used to easily determine the energy usage of loads that draw constant power in steady-state operation. Techniques for monitoring the power consumption of smoothly varying loads (e.g., variable speed drives) using spectral estimates are also discussed.

Copyright © 1998 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In