Process Control Strategy Training

  
Purpose

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, and tuning.

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.

Applications Reviewed

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
Model-Based Control
Cascade Control
Feedforward Control
Gain Scheduling
Split Range
Override Control
Applications Simulated
Standard PID
Model-Based Control
Cascade Control
Long Deadtime
Gain Scheduling
Feedforward Control
Heat/Cool Split Range
Difficult Control Problems
Interacting PID Loops
Long Deadtime Processes
Multi-Output Control
Extruder Control
  
  
 

Course Agenda

  • 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 issues; Demonstration.
  • 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.

Upcoming Classes

Philadelphia, PA - Wednesday-Thursday, March 22-23, 2017
Cleveland, OH - Wednesday-Thursday, May 3-4, 2017