Event-triggering load frequency control for multi-area power system based on random dynamic triggering mechanism and two-side closed functional. (February 2023)

• Record Type: Journal Article
• Authors: Liu, Xingyue; Shi, Kaibo; Ma, Changyou; Tang, Yiqian; Tang, Lin; Wei, Youhua; Han, Yingjun
• Is Part Of: ISA transactions. Volume 133(2023)
• Page Start: 193
• Page End: 204
• Publication Date: 2023-02
• Subjects: Event-triggering load frequency control -- Random dynamic triggering algorithm -- Multi-area load frequency control system -- Advanced Lyapunov–Krasovskii functional -- Two-side closed functional; Engineering instruments -- Periodicals; Engineering instruments; Periodicals; Electronic journals; 629.805
• DOI: 10.1016/j.isatra.2022.06.028
• Languages: English
• ISSNs: 0019-0578

Abstract

Abstract: By taking into account sampled-data mechanism and transmission delay, the novel event-triggering load frequency control (LFC) strategy involving random dynamic triggering algorithm (RDTA) is developed for multi-area power systems in this paper. Firstly, an improved multi-area LFC model considering sampling and transmission delay (STD) simultaneously is addressed. Secondly, a modified event-triggering mechanism (ETM) with RDTA is proposed, considering parameter disturbances and a dynamic adjustment mechanism of the triggering threshold. Thirdly, a more advanced Lyapunov–Krasovskii functional (LKF) is constructed, introducing the delay-dependent matrices, more variable cross terms and the two-sided closed functional. Furthermore, two less conservative stability criteria are obtained according to the designed approach. Finally, two multi-area LFC systems are presented to verify the progressiveness of the proposed approach. Highlights: An improved multi-area load frequency control model with sampling and transmission delay is established. A novel event-triggering mechanism with random dynamic triggering algorithm is proposed by considering parameters disturbance and dynamic adjustment mechanism of triggering threshold. A more advanced Lyapunov–Krasovskii functional is constructed by introducing delay dependent matrix, more cross terms of variables and the two-side closed functional.