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Electronics & Systems

Electrical Grid-Responsive Load Controls (439)

Problem: Need controls for distributed loads that improve grid reliability without adversely affecting electrical customers.

Photos of Grid Friendly Appliance Controller and clothes dryer with controller installed

Project Activity Scope (from Technical Overview Chart): Interactions Mechanisms through Controls and Measurements.

PNNL Solution:

  • Identified electrical equipment where temporary* electrical interruptions will not affect customer satisfaction
  • Developed electrical modules for installation in suitable equipment to:
    • Monitor grid power and detect high grid stress conditions (via frequency or voltage criteria, etc.)
    • Temporarily* shut off the equipment resulting in distributed load reduction
  • Winner of 2007 Federal Laboratory Consortium Award (.pdf 217kb)

Temporarily* = Periods up to 10 minutes.

Capabilities Employed to Meet Client Needs: Knowledge of electrical grid load stress indicators; identification of interruptible equipment in large scale use; grid system load analysis to provide estimate of potential temporary load shedding if self-interrupting equipment was used; design and small scale evaluation of first generation prototype Grid Friendly™ Appliance (GFA) controller; measurement, evaluation, and documentation of performance; design and fabrication of second generation GFA controller for regional evaluation testing.

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Contact: Donald Hammerstrom

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