Engineering and Maintenance
Practical Process Control Best Practices in PID Control, Loop Tuning and Analysis
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Practical Process Control Best Practices in PID Control, Loop Tuning and Analysis Course
Introduction:
Course Objectives:
This workshop is designed to provide engineers and technicians with the basic theoretical and practical understanding of the process loop and how this can be applied to optimize process control in terms of quality, safety, flexibility, and costs.
On successful completion of this workshop delegates will be able to:
- Understand the fundamentals of Process Control
- Define such terms as process lag, capacitance, and resistance
- Gain an insight into the process reaction curve
- Appreciate the effects of 1st and 2nd order reactions
- Avoid incorrect sensor placement
- Distinguish the effect of span on the system performance
Who Should Attend?
Professionals involved in designing, selecting, sizing, specifying, installing, testing, operating, and maintaining process instrumentation and control systems
- Automation Engineers
- Chemical Engineers
- Consulting Engineers
- Design Engineers
Course Outlines:
Basic process considerations
- Definition of terms
- Process lag, capacitance, and resistance
- Process reaction curve
- 1st and 2nd order reactions
Process measurement
- Instrumentation cabling
- Do’s and don’ts
- Filtering
- Aliasing
- Reaction masking
- Sensor placement
- Correct PV
- Effect of span
Final control element
- Choked flow
- Pressure recovery
- Flashing and cavitation
- Valve construction
- Valve characteristics
- Inherent
- Profiling
- Installed
- Cavitation control
- Actuators
- Diaphragm
- Cylinder
- Electric
- Valve positioners
- Deadband and hysteresis
- Stick-slip
- Testing procedures and analysis
- Effect of valve performance on controllability
Fundamentals of Process Control
- ON/OFF control
- Proportional control
- Proportional band vs. proportional gain
- Proportional offset
- Reset
- Integral action
- Integral windup
- Stability
- Bode plot
- Nyquist plot
- Derivative action
- PID control
- Control algorithms
- Load disturbances and offset
- Speed, stability, and robustness
- Proportional band vs. proportional gain
- Proportional offset
- Reset
- Integral action
- Integral windup
- Stability
- Bode plot
- Nyquist plot
- Derivative action
- PID control
- Control algorithms
- Load disturbances and offset
- Speed, stability, and robustness
Fundamentals of Tuning
- Basic principles
- Open-loop reaction curve method (Ziegler-Nichols)
- Default and typical settings
- Closed-loop continuous cycling method (Ziegler-Nichols)
- Lambda tuning