Iterative Procedure for Tuning Decentralized PID Controllers

摘要

An iterative procedure is proposed to design decentralized PID controllers for multi loop processes. Each SISO loop is designed at a time, the controller parameters are computed by a convex optimization problem with constraints on stability margins. Despite the SISO approach, loops interactions are taken into account by Gershgorin bands and Equivalent Open-loop Process (EOP). Two simulation examples are presented to compare the performance with related techniques.