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Title: Adaptive resilient secondary control for islanded AC microgrids with sensor faults
Authors: Li, Xiaolei
Xu, Qianwen
Blaabjerg, Frede
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Li, X., Xu, Q. & Blaabjerg, F. (2020). Adaptive resilient secondary control for islanded AC microgrids with sensor faults. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9(5), 5239-5248.
Project: MOE2017-T2-1-050
Journal: IEEE Journal of Emerging and Selected Topics in Power Electronics
Abstract: In this article, we investigate the adaptive resilient secondary voltage and frequency control problem for islanded ac microgrids (MG) in the presence of sensor faults. Sensor faults or data attacks have a great impact on the stability and quality of MG. Existing methods commonly assume that the sensing information from distributed generations (DGs) is healthy or satisfies some ideal conditions. To achieve resilient secondary voltage restoration, a novel adaptive fault tolerant control scheme is proposed. Since the bounds of the time-varying faults are unknown, sufficient conditions are first derived to guarantee the voltage tracking errors to be uniformly ultimately bounded. It is also theoretically shown that the frequency restoration and power sharing can be ensured stable of the overall ac MG system by using the same control scheme. Compared with the existing distributed control methods for secondary control of MG, the considered problem with unknown boundaries sensor faults is more challenging and still not well explored.
ISSN: 2168-6777
DOI: 10.1109/JESTPE.2020.2988509
Schools: School of Electrical and Electronic Engineering 
Rights: © 2020 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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