HVAC system with predictive airside control
AssigneeJohnson Controls Tyco IP Holdings LLP
InventorsNishith R. Patel, Robert D. Turney, Matthew J. Ellis
Life of this patent
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Abstract
A heating, ventilation, or air conditioning (HVAC) system for a building includes airside HVAC equipment configured to provide heating or cooling to one or more building spaces and one or more controllers. The one or more controllers are configured to generate airside energy targets for the one or more building spaces using a heat transfer model that defines a relationship between the airside energy targets, a temperature of the one or more building spaces, and a thermal capacitance of the one or more building spaces. The one or more controllers are configured to control the airside HVAC equipment in accordance with the airside energy targets.
Claims19
A heating, ventilation, or air conditioning (HVAC) system for a building, the HVAC system comprising:
- airside HVAC equipment configured to provide heating or cooling to one or more building spaces;
- and
- one or more controllers configured to:
- generate airside energy targets for the one or more building spaces using a heat transfer model that defines a relationship between the airside energy targets for the one or more building spaces, a temperature of the one or more building spaces predicted to result from the airside energy targets for the one or more building spaces, and a thermal capacitance of the one or more building spaces to which the heating or cooling is provided by the airside HVAC equipment;
- generate setpoints for the airside HVAC equipment using the airside energy targets;
- and
- control the airside HVAC equipment to provide the heating or cooling to the one or more building spaces in accordance with the setpoints.
A method for operating a heating, ventilation, or air conditioning (HVAC) system for a building, method comprising:
- generating airside energy targets for one or more building spaces using a heat transfer model that defines a relationship between the airside energy targets for the one or more building spaces, a temperature of the one or more building spaces predicted to result from the airside energy targets for the one or more building spaces, and a thermal capacitance of the one or more building spaces to which heating or cooling is provided by airside HVAC equipment;
- generating setpoints for the airside HVAC equipment based on the airside energy targets;
- and
- controlling the airside HVAC equipment to provide heating or cooling to the one or more building spaces in accordance with the setpoints.
A heating, ventilation, or air conditioning (HVAC) system for a building, the HVAC system comprising:
- airside HVAC equipment configured to provide heating or cooling to one or more building spaces;
- and
- one or more controllers configured to:
- generate thermal energy targets for the one or more building spaces using a heat transfer model that accounts for thermal energy storage within a mass of the one or more building spaces, wherein the heat transfer model defines a relationship between the thermal energy targets and a temperature of the one or more building spaces predicted to result from the thermal energy targets as a function of a thermal energy storage characteristic of the one or more building spaces that indicates an amount of thermal energy needed to change the temperature of the one or more building spaces by a given amount;
- generate setpoints for the airside HVAC equipment using the thermal energy targets;
- and
- control the airside HVAC equipment to provide the heating or cooling to the one or more building spaces in accordance with the airside energy targets setpoints.
Dependencies are inferred from the claim text.