SYSTEMS AND METHODS FOR ADAPTIVE CAPACITY CONSTRAINT MANAGEMENT

摘要

An adaptive capacity constraint management system receives a measured value affected by HVAC equipment at actual operating conditions and uses the measured value to determine an operating value for a variable that affects a capacity of the HVAC equipment at the actual operating condition. The system uses the operating value to calculate a gain factor for the variable relative to design conditions and uses the calculated gain factor to determine a capacity gain for the HVAC equipment relative to the design conditions. The system applies the capacity gain to a design capacity limit for the HVAC equipment to determine a new capacity limit for the HVAC equipment at the actual operating conditions. The system may use the new capacity limit as a constraint in an optimization routine that that selects one or more devices of the HVAC equipment to satisfy a load setpoint.

主权项

1. An adaptive capacity constraint management system comprising:
a communications interface configured to receive a measured value for a thermodynamic property affected by a refrigeration circuit at actual operating conditions; and a processing circuit coupled to the communications interface, the processing circuit comprising:
an actual state module that uses the measured value to determine an operating value for a thermodynamic property of a refrigerant used in the refrigeration circuit at the actual operating conditions;a gain module that uses the operating value for the thermodynamic property of the refrigerant to calculate a gain factor for the thermodynamic property of the refrigerant relative to design conditions;a capacity gain module that uses the calculated gain factor to determine a capacity gain for the refrigeration circuit relative to the design conditions;a capacity limit updating module that applies the capacity gain to a design capacity limit for the equipment to determine a new capacity limit for the equipment at the actual operating conditions; andan equipment selection module that uses the new capacity limit as a constraint in an optimization routine that selects one or more devices used to satisfy a thermal energy load.