This session will demonstrate the best practices techniques for commonly used process control strategies beyond
PID control, such as multi-layer cascades, override control, gain scheduling, feedforward compensation, design,
We will discuss when each strategy is appropriate along with the common implementation pitfalls that often produce
less than desirable results.
- Each strategy will be simulated and demonstrated using software-based process simulation in class.
- Instructor will use both a PowerPoint presentation and real process simulation during these training classes.
- As on Day 1, hands-on exercises will allow attendees to practice these techniques in real-time simulation.
Required: Laptop computer with CD drive. Windows XP, 2000 or higher. and MS PowerPoint.
Students will receive copies of all the simulations used in class. These will include simple Temperature, Pressure,
Flow, and Level loops along with complex applications such as Chlorine Control, Chemical Reactor, In-line Blending,
Extrusion, and Ramp and Soak Furnace Control.
Using the provided software, students can simulate, change, and build a control strategy on the fly. The results can be
seen and evaluated right away.
|Understanding Process Control
Advanced PID Control
Heat/Cool Split Range
|Difficult Control Problems
Interacting PID Loops
Long Deadtime Processes
- PID Control: Review and overview of PID control; Common mistakes; Brief discussion of proper tuning from
previous day’s instruction.
- Cascade Control: Benefits of cascade control; Processes that benefit from cascade; Common implementation
- Feedforward Control: Benefits of feedforward; Discussion of when to use feedforward; Implementation of feedforward;
Design and demonstration of how feedforward control can reduce a process disturbance.
- Gain Scheduling and Multiple PID: Discussion of process nonlinearity; How nonlinearity can affect your process;
Implementation of gain scheduling; Demonstration of the benefits of gain scheduling.
- Override Control: Discussion of override control for process safety; Implementation of override control; Discussion
of the importance of controller tracking; Simulation.
- Long Deadtime Processes: Discussion of other common control issues and their solutions.
- Robust Model Predictive Control: 3x1 model-based control, modeling, tuning, and applications.
Philadelphia, PA - Wednesday-Thursday, March 22-23, 2017
Cleveland, OH - Wednesday-Thursday, May 3-4, 2017