Gain Scheduling (Pre-programmed Controller Parameter Adjustment)

Doug Cooper
Article / Blog

Process gain and time-constants change with operating flow rate, tank levels, temperatures, etc.  This often requires re-tuning of the controller coefficient values.  However, once done, desirable tuning values for the operating conditions can be stored in a table.  Then as operating conditions change, appropriate tuning values can be transferred to the controller.  They could also be linearly interpolated between operating conditions. 



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