Dynamic memory event-triggered proportional-integral-based H∞ load frequency control for multi-area wind power systems

Baihua Li, Shaoyu Hu, Qishui Zhong, Kaibo Shi and Shouming Zhong

Applied Mathematics and Computation, 2023, vol. 453, issue C

Abstract: Aiming at ensuring the stability of multi-area doubly fed induction generator (DFIG)-integrated wind power systems, a dynamic memory event-triggered H∞ load frequency control (LFC) scheme is presented in this article. Firstly, a unified LFC model of multi-area DFIG-integrated wind power systems is constructed considering the grid connection of the DFIG-based wind turbine. Secondly, a dynamic memory event-triggered scheme (DMETS) is proposed to reduce the utilization of communication bandwidth by introducing a dynamic threshold parameter and historical data. Furthermore, the designed multi-area LFC model is reconstructed as a time-delay system under DMETS and proportional-integral (PI) controller with transmission delays introduced by open communication network. Then, asymptotic stability criteria meeting the H∞ attenuation performance index and an H∞ controller design criterion are obtained according to a selected Lyapunov–Krasovskii functional. Finally, numerical examples are presented to demonstrate the availability of the designed control scheme and the advantages of the proposed DMETS in reducing communication burden.

Keywords: Wind power systems; Load frequency control (LFC); Event-triggered scheme; Proportional-integral (PI) control (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:453:y:2023:i:c:s0096300323002394

DOI: 10.1016/j.amc.2023.128070

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