Setpoint adjustment-based duty cycling
AssigneeUplight, Inc.
InventorEric M. Shiflet
Life of this patent
Estimating the term…
Abstract
A facility for performing setpoint adjustment-based duty cycling techniques by adjusting the setpoint of a device or component is described. The facility reduces energy consumption for a system, such as an HVAC system, or device by adjusting or modulating an associated setpoint or temperature setting. The facility modulates the setpoint between a base setpoint value and another setpoint value based on a mode of the system. When the system is in a cooling mode, the facility modulates the temperature between the base setpoint value and a higher setpoint value. When the system is in heating mode, the facility modulates the temperature between the base setpoint value and a lower setpoint value. The facility may modulate the setpoint between the two setpoint values based on an offset value or a fixed setpoint value.
Claims12
A controller for use with a heating, ventilation, and air conditioning (HVAC) system and a controlled device, the controller comprising a memory and a processor and being configured to:
- identify a base setpoint value for the controlled device;
- receive an indication of a duty cycling event, the duty cycling event having a duration and an offset value;
- define an offset setpoint value for the controlled device based at least in part on the base setpoint value and the offset value associated with the duty cycling event;
- and
- modulate a setpoint of the controlled device between the base setpoint value and the offset setpoint value a plurality of times over the duration of the duty cycling event.
A controller for use with an energy and temperature control system having a heating, ventilating and air conditioning (HVAC) system and an adjustable energy control device coupled to the HVAC system, the controller having a memory and a processor and being configured to:
- determine a base setpoint value for the energy control device;
- receive an indication of a duty cycling event associated with the HVAC system;
- determine whether the duty cycling event is an offset-based duty cycling event;
- in response to determining that the duty cycling event is an offset-based duty cycling event:
- determine a first offset value for the duty cycling event for the HVAC system;
- determine whether the HVAC system is in a first temperature adjusting mode;
- in response to determining that the HVAC system is in the first temperature adjusting mode:
- determine a first offset setpoint value based at least in part on the base setpoint value and the first offset value;
- and
- cycle a setpoint of the energy control device between the determined base setpoint value and the first offset setpoint value a plurality of times during the duty cycling event.
Dependencies are inferred from the claim text.