Tuning rules for robust FOPID controllers based on multi-objective optimization with FOPDT models

详细信息    查看全文

• 作者：Helem Sabina Sá ; nchez^a ; ^{helemsabina.sanchez@uab.cat} ; Fabrizio Padula^b ; ¹ ; ^{fabrizio.padula@curtin.edu.au} ; Antonio Visioli^c ; ² ; ^{antonio.visioli@unibs.it} ; Ramon Vilanova^a ; ^{ramon.vilanova@uab.cat}
• 关键词：Fractional-order PID controllers ; Multi-objective optimization ; Nash solution ; Balanced tuning
• 刊名：ISA Transactions
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：66
• 期：Complete
• 页码：344-361
• 全文大小：3071 K
• 卷排序：66

文摘

A set of optimally balanced tuning rules for fractional-order proportional-integral-derivative controllers is proposed. The control problem of minimizing at once the integrated absolute error for both the set-point step response and the load disturbance step response is addressed. Further, the maximum sensitivity is considered as a constraint for the optimization problem. The control problem is stated as a multi-objective optimization problem where a first-order-plus-dead-time process model has been considered. The Nash solution is chosen between the set of Pareto optimal solutions obtained for different normalized dead times. A curve fitting procedure has then eventually been applied in order to generate suitable tuning rules.