Patent ID: 11953865
Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
Field: Control (Instruments)
Classification: CPC G  F | IPC F  G

Claim 0:
1. A controller for heating, ventilation, or air conditioning (HVAC) equipment, the controller comprising a processing circuit configured to:
perform a first optimization to generate a first set of control decisions at a plurality of time steps of a first prediction horizon for HVAC equipment comprising waterside HVAC equipment that consume one or more resources from utility providers to generate a heated or chilled fluid and airside HVAC equipment that receive the heated or chilled fluid from the waterside HVAC equipment and use the heated or chilled fluid to heat or cool a supply of airflow for a building;
perform a second optimization subject to a constraint to generate a second set of control decisions for the HVAC equipment using a full model of the waterside HVAC equipment and the airside HVAC equipment to generate the second set of control decisions at a plurality of time steps within a second prediction horizon, the second prediction horizon shorter than the first prediction horizon, wherein the constraint is based on a result of the first optimization and comprises at least one of (i) a fixed value for a variable in the second optimization, (ii) an upper or lower bound for the second optimization, or (iii) a predicted state of the HVAC equipment or a predicted state of the building at one or more of the plurality of time steps within the first prediction horizon resulting from performing the first optimization;
combine the first set of control decisions and the second set of control decisions to generate a combined set of control decisions for the HVAC equipment; and
operate the HVAC equipment in accordance with the combined set of control decisions.