n IMIESA - Controlling chlorination in drinking water : water and waste water
|Article Title||Controlling chlorination in drinking water : water and waste water|
|© Publisher:||3S Media (Pty) Ltd|
|Publication Date||Feb 2006|
|Pages||32 - 37|
Extracted from text ... 32 - IMIESA FEBRUARY 2006 WATER AND WASTEWATER Controlling chlorination in drinking water by Jeff Sandison* Model predictive controllers are commonly used on data control system (DCS) platforms and as supervisory control systems. Recently, two single loop model predictive controllers with model-based feed-forward compensation were implemented using a standard function block library that is available with the ControlLogix system from Rockwell Automation. This controller significantly reduces process variation when compared with proportional-integralderivative methods (PID) or similar common controllers, providing engineers with significant insight into the process and the control approach and allowing for easy startup, debugging and maintenance. Model ..
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