Control system having a binomial setpoint filter

Details Control system having a binomial setpoint filter Control system having a binomial setpoint filter

1997-03-24

1998-12-15

Wayner, William

Refrigeration

Processes

Fluid external of refrigeration producing cycle

236 78D, 318611, G05B 501, G05D 1500

Patent

active

058485350

ABSTRACT:
A control system for controlling overshoot in response to a setpoint input to the control system is provided. The control system includes a feedback loop connected to the control system via a summing node; and a binomial filter arranged to receive a setpoint input and to provide a filtered setpoint output to the control system via the summing node. The control system includes the binomial filter to provide a filtered setpoint output having a gradual initial response to the control system via the summing node. A method of controlling a water chiller system to provide a supply of leaving water at a preselected temperature is also provided. The method has the steps of: providing a control system for the water chiller system, the control system having an input; selecting a setpoint temperature; filtering the setpoint temperature using a binomial filter to provide a filtered setpoint; and providing the filtered setpoint to the input of the control system.

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