Cascaded systems and methods for controlling energy use during a demand limiting period
DCFirst Claim
1. A cascaded control system for controlling power consumption of a building during a demand limiting period, the system comprising:
- an energy use setpoint generator configured to use energy pricing data and measurements of a variable condition within the building to generate an energy use setpoint during the demand limiting period; and
a feedback controller configured to use a difference between the energy use setpoint and a measured energy use to generate a control signal for building equipment that operate to affect the variable condition within the building during the demand limiting period.
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Abstract
A cascaded control system is configured to control power consumption of a building during a demand limiting period. The cascaded control system includes an energy use setpoint generator and a feedback controller. The energy use setpoint generator is configured to use energy pricing data and measurements of a variable condition within the building to generate an energy use setpoint during the demand limiting period. The feedback controller is configured to use a difference between the energy use setpoint and a measured energy use to generate a control signal for building equipment that operate to affect the variable condition within the building during the demand limiting period.
54 Citations
20 Claims
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1. A cascaded control system for controlling power consumption of a building during a demand limiting period, the system comprising:
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an energy use setpoint generator configured to use energy pricing data and measurements of a variable condition within the building to generate an energy use setpoint during the demand limiting period; and a feedback controller configured to use a difference between the energy use setpoint and a measured energy use to generate a control signal for building equipment that operate to affect the variable condition within the building during the demand limiting period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A cascaded control system for controlling power consumption of a building during a demand limiting period, the system comprising:
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an energy use setpoint generator configured to use energy pricing data and measurements of a variable condition within the building to generate an energy use setpoint during the demand limiting period; a feedback controller configured to use a difference between the energy use setpoint and a measured energy use to generate a device setpoint; and a device controller configured to receive the device setpoint as an input and to operate building equipment to achieve the device setpoint, the building equipment being configured to affect the variable condition within the building during the demand limiting period. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for controlling power consumption of a building during a demand limiting period using a cascaded control strategy, the method comprising:
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generating an energy use setpoint during the demand limiting period based on energy pricing data and measurements of a variable condition within the building; and generating a control signal for building equipment based on a difference between the energy use setpoint and a measured energy use; and providing the control signal to the building equipment, wherein the building equipment operate to affect the variable condition within the building during the demand limiting period. - View Dependent Claims (17, 18, 19, 20)
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Specification