Method for optimal selection of deadbands in on/off controllers
AssigneeJohnson Controls Tyco IP Holdings LLP
InventorsTimothy I. Salsbury, John M. House, Carlos Felipe Alcala Perez
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AssigneeJohnson Controls Tyco IP Holdings LLP
InventorsTimothy I. Salsbury, John M. House, Carlos Felipe Alcala Perez
Estimating the term…
An on-off control system includes on-off equipment configured to operate in either an on state or an off state, an on-off controller configured to cause the equipment to transition between the on state and the off state based on a setpoint value and a deadband value to drive a control variable toward the setpoint value, and a deadband controller, according to some embodiments. In some embodiments, the deadband controller is configured to generate the deadband value used by the on-off controller. In some embodiments, the deadband controller is configured to generate the deadband value by obtaining a cost function that defines a cost based on at least a set of control values and the deadband value and selecting the deadband value that results in an optimal value of the cost function over a range of possible deadband values, the selected deadband value defining an optimal deadband value.
An on-off control system comprising:
The system of claim wherein the deadband controller is further configured to generate the deadband value by modulating the variable representing the deadband value.
Dependencies are inferred from the claim text.