Last updated 5 Jan 2020

Loop Problem Signatures series



Introduction to "Loop Problem Signature" series


Over the years I have had many requests to write a book and give more detailed explanations of some of the problems we have encountered in our work on practical loop optimisation. However,  I believe that people learn far more, and even more importantly, would gain much better understanding of the subject by actually attending our courses where things are demonstrated by doing exercises on a powerful simulation package, rather than trying to read it up in a book.  But since some of the past delegates did not have the time and/or opportunity to practice what they had learnt in their plants, and soon forgot much of the course, many of them have also requested me to put out a book or CD.


Series 1. Basic Troubleshooting and Loop Tuning


I have therefore published some of the information dealt with in our courses on a PDF Series. Michael Brown's Basic Troubleshooting and Loop Tuning Course consists of 31 chapters, and is a new and very practical approach to the basics of regulatory control loop optimisation. Some of the chapters are included below in the Loop Problem Signatures series. If you would like to buy the complete course, please contact Michael Brown Control Engineering for prices and ordering information.



Examples of Loop Problem Signature Series articles


LS7. Final control elements - Part 3. Hysteresis and deadband


LS12. Digital controllers - Part 4. The I term


LS16. Digital controllers - Part 8. The Full PID Controller and Response to Setpoint or Load Changes


LS20. Filters - the great deceivers


LS31. Non-linearity in control loops (Part 2)



Series 2. Advanced Optimisation Techniques

This is a new series that was produced over the last couple of years.


Examples of Articles on the Advanced Optimisation Techniques Course


LSp2-2. Feedforward control - part 1


LSp2-11. Dynamics of simpler processes: The pure LAG, self-regulating process


LSp2-14.  Dynamics of simpler processes: Negative lead-lag, deadtime, self-regulating process


LSp2-18.  Dynamics of more complex processes: End point control (The batch reactor)


LSp2-19.  Dynamics of more complex processes: Slow "pure" integrators


LSp2-20.  Dynamics of more complex processes: Positive lead integrators - Part 1