A Continuous Nonlinear Fractional-Order PI Controller for Primary Frequency Control Application. (13th April 2021)

• Record Type: Journal Article
• Authors: Elyaalaoui, Kamal; Labbadi, Moussa; Ouassaid, Mohammed; Cherkaoui, Mohamed
• Other Names: Chen Liping Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2021(2021)
• Publication Date: 2021-04-13
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2021/9953828
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : In this paper, a nonlinear fractional-order PI (NL-FO-PI) controller is proposed for primary frequency control (PFC) of a wind farm based on the squirrel cage induction generator. The new structure composites a fractional-order operator and nonlinear function to achieve better control performance for the PFC system. The benchmarking process is demonstrated by investigating the performance of fractional-order PI (FO-PI) and nonlinear PI (NL-PI) controllers. Initially, the controller is applied to a single-area power system for design and stability study and then extended to the two-area interconnected wind farm to validate the applicability in the more realistic power system. The proposed control method ensures the balance of power and keeps the system frequency within a suitable range. The simulation results demonstrate that the proposed NL-FO-PI controller provides less percentage overshoot, settling time, rise time, and peak time than other controllers.