CPSOGSA Optimization Algorithm Driven Cascaded 3DOF-FOPID-FOPI Controller for Load Frequency Control of DFIG-Containing Interconnected Power System

Shihao Xie, Yun Zeng (), Jing Qian, Fanjie Yang and Youtao Li
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Shihao Xie: School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Yun Zeng: School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Jing Qian: School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Fanjie Yang: School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Youtao Li: School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China

Energies, 2023, vol. 16, issue 3, 1-18

Abstract: This paper proposes a new cascaded fractional-order controller (CC-FOC) to solve the load frequency control (LFC) problem of an interconnected power system. The CC-FOC consists of a three-degree-of-freedom fractional-order proportional-integral-differential (3DOF-FOPID) controller and a fractional-order proportional-integral (FOPI) controller. Each area of the two-area interconnected power system in this study consists of a thermal unit, a hydro unit, a diesel unit, and a doubly-fed induction generator (DFIG). The enhanced particle swarm optimization (PSO) and gravitational search algorithm (GSA) under the chaotic map optimization (CPSOGSA) technique are used to optimize the controller gains and parameters to enhance the load frequency control performance of the cascade controller. Moreover, simulation experiments are conducted for the interconnected power system under load perturbation and random wind speed fluctuations. The simulation results demonstrate that the proposed cascaded fractional-order controller outperforms the traditional proportional-integral-differential (PID) controller and three other fractional-order controllers in terms of LFC performance. The suggested cascade controller displays strong dynamic control performance and the resilience of the cascade fractional-order controller by adjusting the load disturbance and analyzing the system characteristics.

Keywords: CC-FOC; CPSOGSA; DFIG; load frequency control; two-area interconnected power system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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