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Energy management in a building

  • US 9,448,550 B2
  • Filed: 07/27/2010
  • Issued: 09/20/2016
  • Est. Priority Date: 07/30/2009
  • Status: Active Grant
First Claim
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1. A method for managing an energy system of a building, comprising one or more occupants to be present in an area (i) of the building, each occupant determining a desired ambient temperature for a given period (k), wherein the method comprisesa step for determining a global thermal comfort criteria including an overall thermal sensation value Si (k) in area (i) for period (k), this value being defined from the desired ambient temperature of each occupant present in the building in the area (i) for period (k), and in that the method comprises a determination of heating or cooling in each area (i) for each period (k) in order to achieve the comfort criteria, based on meteorological forecasts for each period (k), using a thermal behaviour model of each area (i) of the building to link a temperature (Ti (k+1)) of an area (i) for a period (k+1) to a temperature (Ti (k)) of the area (i) in a preceding period (k), according to thermal constants of the building, of an energy (Pm (k)) supplied by an appliance during the period (k), of an outdoor temperature (Text (k)) in the period (k), of solar radiant (Φ

  • s (k)) affecting the area (i) for the period (k), by the following equation;


    Ti(k+1)=A Ti(k)+B Pm(k)+C1 Text(k)+C

    s(k)in which A, B, C1 and C2 are matrices of the thermal behaviour of the building,a step for determining a binary global occupancy parameter (Oi,k), representing presence or absence of at least one occupant in an area (i) of the building for a given period (k), which takes a zero value when absence and is equal to one when there is at least one occupant, and in that it takes into account a product of the global occupancy parameter (Oi,k) by the global comfort parameter for the management of the energy of the building based on the desired ambient temperature of the at least one occupant present in the area of the building concerned during the period (k), andadjusting the energy system of the building using the determined global thermal comfort criteria and the determined binary global occupancy parameter (Oi,k).

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