Configuring a PID controller
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United States of America Patent
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Aug 12, 2014
Grant Date -
Apr 5, 2012
app pub date -
Sep 14, 2011
filing date -
Sep 30, 2010
priority date (Note) -
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Abstract
A method and system for configuring a PID controller. The method includes the steps of: providing initial values of a coefficient candidate group for a PID controller, where the coefficient candidate group includes coefficient candidates; providing an evaluation functional, where an unfalsified evaluation function is calculated from the evaluation functional; measuring an input and an output of a plant; selecting the coefficient candidates from the coefficient candidate group; calculating the evaluation functional using measured input and measured output for each of the coefficient candidates of the PID controller; removing a selected coefficient candidate if the evaluation functional is falsified as a result of a calculation of the evaluation functional; selecting new coefficient candidates as an update expression from remaining coefficient groups that have not been falsified; and repeating the steps of calculating and removing for each of the new coefficient candidates of an updated coefficient candidate group.
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