THERMODYNAMIC MODEL GENERATION AND IMPLEMENTATION USING OBSERVED HVAC AND/OR ENCLOSURE CHARACTERISTICS

摘要

Techniques for determining and using a thermodynamic model that characterizes a thermodynamic response of an enclosure conditioned by an HVAC system are disclosed. To determine a thermodynamic model, temperature information when the HVAC system operates in a first state may first be received. A response interval may then be determined where the response interval indicates an estimated time between when the HVAC system begins operating in the first state and when the temperature within the enclosure begins to change in a direction associated with the first state. Weighting factors corresponding to basis functions may then be determined, where the weighted basis functions characterize the temperature trajectory of the enclosure in response to the HVAC system operating in the first state. The basis functions may include a first basis function that is evaluated from a time that the HVAC system begins operating in the first state until a time when the response interval ends, and a second basis function that is evaluated beginning at the time when the response interval ends.

主权项

1. A method of determining a thermodynamic model of an enclosure associated with a heating, ventilation, and air conditioning (HVAC) system, the method comprising:
receiving temperature information for a period of time during which the HVAC system operates in a first state, the temperature information defining a temperature trajectory of the enclosure during the period of time; determining, by a computer system, a response interval that indicates an estimated time between when the HVAC system begins operating in the first state and when the temperature within the enclosure begins to change in a direction associated with the first state; and determining, by the computer system and using the temperature information, a plurality of weighting factors corresponding to a respective plurality of basis functions, the weighted combination of basis functions characterizing the temperature trajectory of the enclosure in response to the HVAC system operating in the first state, wherein the plurality of basis functions comprises:
a first basis function that is evaluated from a time that the HVAC system begins operating in the first state until a time when the response interval ends; anda second basis function that is evaluated beginning at the time when the response interval ends.