Sliding-mode perturbation observer-based sliding-mode control design for stability enhancement of multi-machine power systems

Yang, B, Yu, T, Shu, HC, Yao, W and Jiang, L ORCID: 0000-0001-6531-2791 (2019) Sliding-mode perturbation observer-based sliding-mode control design for stability enhancement of multi-machine power systems TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL, 41 (5). pp. 1418-1434. ISSN 0142-3312, 1477-0369

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Abstract

This paper presents the design of a sliding-mode perturbation observer-based sliding-mode control for stability enhancement of multi-machine power systems. The combinatorial effect of nonlinearities, parameter uncertainties, unmodelled dynamics and time-varying external disturbances is aggregated into a perturbation, which is rapidly estimated by a sliding-mode state and perturbation observer and then fully compensated by a sliding-mode controller in real time. The attractiveness of the sliding surface is analysed theoretically in the context of the Lyapunov criterion. The proposed control does not require an accurate system model and only one state measurement is needed. In addition, an over-conservative control effort can be effectively avoided via perturbation compensation. Simulation results for a three-machine power system and the New England power system verify the effectiveness of the proposed approach.

Item Type:	Article
Uncontrolled Keywords:	Sliding-mode control, perturbation observer, multi-machine power system, stability enhancement
Depositing User:	Symplectic Admin
Date Deposited:	15 Nov 2018 09:14
Last Modified:	16 Jun 2026 06:17
DOI:	10.1177/0142331218783240
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3028869
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