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AWS - APMonitor Option

Main.OptionAws History

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June 08, 2017, at 08:44 PM by 10.5.113.159 -
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%width=50px%Attach:mv.png [[Main/DbsVariable|Local Options]] | [[Main/DbsGlobal|Global Options]]
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%width=50px%Attach:mv.png [[Main/DbsVariable|Local Options]] | %width=30px%Attach:apm.png [[Main/DbsGlobal|Global Options]]
June 08, 2017, at 05:40 PM by 10.5.113.159 -
June 08, 2017, at 05:39 PM by 10.5.113.159 -
Changed line 5 from:
%width=50px%Attach:mv.png [[Main/DbsVariable|Local Options]] | [[Main/DbsGlobal|Options]]
to:
%width=50px%Attach:mv.png [[Main/DbsVariable|Local Options]] | [[Main/DbsGlobal|Global Options]]
June 08, 2017, at 05:39 PM by 10.5.113.159 -
Changed line 5 from:
%width=50px%Attach:mv.png 
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%width=50px%Attach:mv.png [[Main/DbsVariable|Local Options]] | [[Main/DbsGlobal|Options]]
June 06, 2017, at 12:44 PM by 45.56.3.173 -
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(:title AWS - APMonitor Option:)
(:keywords AWS, Optimization, Estimation, Option, Configure, Default, Description:)
(:description AWS is Anti-Windup Status, meaning that the Manipulated Variable (Controller Output) is currently at a saturation limit:)

%width=50px%Attach:mv.png 

 Type: Floating Point, Output
 Default Value: 0
 Description: Anti-Windup Status for a Manipulated Variable
              0: Not at a limit
              1: An upper or lower bound is reached

Anti-Windup Status (AWS) is terminology borrowed from classical controls such as Proportional Integral Derivative (PID) controllers. Anti-Windup refers to the integral action that is paused when the controller reaches a saturation limit. An example of a saturation limit is a valve that is limited to 0-100% open. If the controller requests -10%, the valve is still limited to 0%. The AWS indication is useful to show when a controller is being driven by an optimization objective versus constraints that limit movement. A Key Performance Indicator (KPI) of many controllers is the fraction of time that a MV is not at an upper or lower bound limit.