Design of Optimal FOPID Controller for Speed Control of DC Motor Including Drive and Chopper Dynamic Considering Multi-Objective Optimization Using Water Cycle Optimization Algorithm

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Moradi Zirkohi M.

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Journal: Year:2020 | Volume:10 | Issue:1 Page(s): 149-160

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Title

Design of Optimal FOPID Controller for Speed Control of DC Motor Including Drive and Chopper Dynamic Considering Multi-Objective Optimization Using Water Cycle Optimization Algorithm

Author(s)

Moradi Zirkohi M. | Issue Writer Certificate

Keywords

Fractional CalculusQ1

Fractional PID ControllerQ1

DC MotorQ1

Water Cycle Optimization AlgorithmQ1

Abstract

Since DC Motors have simple structure and long life, the precise speed control for increasing performance and industrial applications is of great importance. This paper is devoted to designing a Fractional PID Controller in order to speed control of a DC Motor by considering the drive and chopper dynamics. As a novelty, chopper dynamic is also considered. From a control point of view, the dynamics of the chopper could complicate the system dynamics, and from a practical point of view, it could reduce the ripple of the armature current. This improves the transient response and results in better speed regulation. In addition, as a novelty, to adjust the fractional order PID controller coefficients a new optimization approach called watercycle optimization (WCA) algorithm by considering a multi-objective criteria is employed. The results obtained are compared with the artificial bee colony and particle swarm optimization algorithm. The results show that the fractional order PID controller optimized by the WCA algorithm performs better in terms of rise-time, overshoot and steady state error.

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