This educational ISA webinar on model-predictive controllers was presented by Flavio P. Briguente and Greg McMillan of the ISA Mentor Program.
Having two small model-predictive controllers (MPCs) available as a standard option in a distributed control system (DCS) shows much better performance than the previous PID for product pH and assay control, reducing off-spec product and raw material use. The MPC effectively deals with a recycle stream and a level override scheme that can change production rates and different product formulations by automatically switching in and out an MPC for each product.
About the Presenter
Gregory K. McMillan, CAP, is a retired Senior Fellow from Solutia/Monsanto where he worked in engineering technology on process control improvement. Greg was also an affiliate professor for Washington University in Saint Louis. Greg is an ISA Fellow and received the ISA Kermit Fischer Environmental Award for pH control in 1991, the Control magazine Engineer of the Year award for the process industry in 1994, was inducted into the Control magazine Process Automation Hall of Fame in 2001, was honored by InTech magazine in 2003 as one of the most influential innovators in automation, and received the ISA Life Achievement Award in 2010. Greg is the author of numerous books on process control, including Advances in Reactor Measurement and Control and Essentials of Modern Measurements and Final Elements in the Process Industry. Greg has been the monthly "Control Talk" columnist for Control magazine since 2002. Presently, Greg is a part time modeling and control consultant in Technology for Process Simulation for Emerson Automation Solutions specializing in the use of the virtual plant for exploring new opportunities. He spends most of his time writing, teaching and leading the ISA Mentor Program he founded in 2011.
About the Presenter
Flavio Briguente is an advanced process control consultant at Evonik in North America, and is one of the original protégés of the ISA Mentor Program. Flavio has expertise in model predictive control and advanced PID control. He has worked at Rohm, Haas Company, and Monsanto Company. At Monsanto, he was appointed to the manufacturing technologist program, and served as the process control lead at the Sao Jose dos Campos plant in Brazil and a technical reference for the company’s South American sites. During his career, Flavio focused on different manufacturing processes, and made major contributions in optimization, advanced control strategies, Six Sigma and capital projects. He earned a chemical engineering degree from the University of São Paulo, a post-graduate degree in environmental engineering from FAAP, a master’s degree in automation and robotics from the University of Taubate, and a PhD in material and manufacturing processes from Aeronautics Institute of Technology.