Multiobjective evolutionary algorithms for multivariable PI controller design

摘要

A multiobjective optimisation engineering design (MOED) methodology for PI controller tuning in mul tivariable processes is presented. The MOED procedure is a natural approach for facing multiobjective problems where several requirements and specifications need to be fulfilled. An algorithm based on the differential evolution technique and spherical pruning is used for this purpose. To evaluate the meth odology, a multivariable control benchmark is used. The obtained results validate the MOED procedure as a practical and useful technique for parametric controller tuning in multivariable processes.