A Multi-objective Optimization Design Methodology for SISO PID Controllers

By today, PI-PID controllers remain as reliable control solutions in a wide variety of industrial applications. Several tuning techniques have been designed and proposed successfully over the years. However the difficulty for tuning procedures increase as multiple requirements and criteria to evaluate the closed loop performance are demanded to be fulfilled. In this work, a multi-objective optimization design methodology is applied to the SISO benchmark for PID control based on the Boiler Control Problem. The main advantage of a multi-objective design methodology, is the capacity to perform an analysis on the trade-off among objectives.