The Challenge
Site regulatory controls are often designed using template strategies and default tuning parameters to provide basic operational functionality. While this approach tends to work fairly well for common flow, pressure and temperature loops, there is often significant room for improvement on more complex applications. Common regulatory control applications that benefit from strategy design improvements include:
- Cascade control loops
- Highly-coupled control loops
- Mid-ranging controls for major/minor valve setup
- pH and other non-linear control applications
- Concentration, reagent dosing and blending controls
- Pump box level management
- Tanks in series
- Deadtime-dominant control loops
