TY - JOUR
T1 - Invariant Set-Based DC Microgrid Decentralized Actuator Fault-Tolerant Control
AU - Soliman, Hisham M.
AU - Bayoumi, Ehab H.E.
AU - El-Sheikhi, Farag Ali
AU - Ahshan, Razzaqul
AU - Nengroo, Sarvar Hussain
AU - Lee, Sangkeum
N1 - Publisher Copyright:
© 2013 IEEE.
DBLP License: DBLP's bibliographic metadata records provided through http://dblp.org/ are distributed under a Creative Commons CC0 1.0 Universal Public Domain Dedication. Although the bibliographic metadata records are provided consistent with CC0 1.0 Dedication, the content described by the metadata records is not. Content may be subject to copyright, rights of privacy, rights of publicity and other restrictions.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - Faults and system failure components are primarily two causes of unstable or deteriorating control performance of power system. In this study, we present a novel approach to the decentralized restoration of large DC microgrids using fault-tolerant control (FTC). The microgrid achieves decentralization by partitioning into several smaller grids. Each independent grid views the actions of the other grids as an external disturbance. The malfunction of the controller is represented in the input matrix as a norm-bounded uncertainty. The disturbance impact is diminished due to the proposed invariant-set approach. The proposed control can address simultaneous failures in actuators with random placement and degradation levels. In a passive FTC system, when the defect cannot be detected (or the fault may not have been clearly addressed), the proposed technique is utilized. After the fault has occurred, it can be viewed as an uncertainty in system dynamics. The controller that stabilizes the system is obtained by solving iteratively bilinear matrix inequalities as linear matrix inequalities. In addition, this study presents and discusses positive outcomes of applying this method to a system of six interconnected DC microgrids in the event of multiple fault types. The proposed control successfully stabilizes the severe case of simultaneous actuator faults.
AB - Faults and system failure components are primarily two causes of unstable or deteriorating control performance of power system. In this study, we present a novel approach to the decentralized restoration of large DC microgrids using fault-tolerant control (FTC). The microgrid achieves decentralization by partitioning into several smaller grids. Each independent grid views the actions of the other grids as an external disturbance. The malfunction of the controller is represented in the input matrix as a norm-bounded uncertainty. The disturbance impact is diminished due to the proposed invariant-set approach. The proposed control can address simultaneous failures in actuators with random placement and degradation levels. In a passive FTC system, when the defect cannot be detected (or the fault may not have been clearly addressed), the proposed technique is utilized. After the fault has occurred, it can be viewed as an uncertainty in system dynamics. The controller that stabilizes the system is obtained by solving iteratively bilinear matrix inequalities as linear matrix inequalities. In addition, this study presents and discusses positive outcomes of applying this method to a system of six interconnected DC microgrids in the event of multiple fault types. The proposed control successfully stabilizes the severe case of simultaneous actuator faults.
KW - DC microgrid (MG)
KW - decentralized control
KW - fault-tolerant control
KW - invariant ellipsoid
KW - robust tracker
UR - http://www.scopus.com/inward/record.url?scp=85174837615&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85174837615&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/f38801f2-4c28-38a9-a20b-185df80da4f1/
U2 - 10.1109/ACCESS.2023.3324820
DO - 10.1109/ACCESS.2023.3324820
M3 - Article
AN - SCOPUS:85174837615
SN - 2169-3536
VL - 11
SP - 114952
EP - 114962
JO - IEEE Access
JF - IEEE Access
ER -