A Fractional PID Controller Based on Particle Swarm Optimization Algorithm

Journal: Journal of Autonomous Intelligence DOI: 10.32629/jai.v3i1.94

Yinglei Song

Department of Electronics and Information Science, Jiangsu University of Science and Technology, Professor


Fractional PID controller is a convenient fractional structure that has been used to solve many problems in automatic control. The fractional scale proportional-integral-differential controller is a generalization of the integer order PID controller in the complex domain. By introducing two adjustable parameters  and , the controller parameter tuning range becomes larger, but the parameter design becomes more complex. This paper presents a new method for the design of fractional PID controllers. Specifically, the parameters of a fractional PID controller are optimized by a particle swarm optimization algorithm. Our simulation results on cold rolling APC system show that the designed controller can achieve control accuracy higher than that of a traditional PID controller.


fractional PID Controller;Particle Swarm Optimization;Parameter Tuning


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