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Electrical appliance energy consumption control

  • US 9,037,308 B2
  • Filed: 06/27/2014
  • Issued: 05/19/2015
  • Est. Priority Date: 02/10/2009
  • Status: Active Grant
First Claim
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1. A power control system configured to consume electrical power, at least a portion of which is generated from a renewable energy source, the system comprising:

  • a plurality of electrical appliances each comprising an energy storage device comprising;

    a heat storage medium;

    a heater configured to heat the heat storage medium at a heating rate; and

    a temperature sensor that produces a temperature signal indicative of a temperature of the heat storage medium; and

    a controller adjusts the heating rate of each energy storage device from a first heating rate to a second heating rate based on the temperatures of the heat storage mediums of the other energy storage devices and a target temperature indicative of a desired temperature for the medium of the energy storage device;

    wherein;

    the first and second heating rates are greater than zero; and

    the second heating rates for the energy storage devices having lower temperature heat storage mediums are higher than the second heating rates of the energy storage devices having higher temperature heat storage mediums.

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