TY - JOUR
T1 - Distributed Aperiodic Control of Multibus DC Microgrids With DoS-Attack Resilience
AU - Li, Yunpeng
AU - Meng, Wenchao
AU - Fan, Bo
AU - Zhao, Shiyi
AU - Yang, Qinmin
N1 - Publisher Copyright:
IEEE
PY - 2022/11/1
Y1 - 2022/11/1
N2 - In this article, we present a distributed aperiodic control algorithm for multibus DC microgrids to realize proper current sharing and voltage regulation under denial-of-service (DoS) attacks. To deal with the DoS attacks, an estimation mechanism using only local information is designed when the communication channels are jammed, which avoids persistent load fluctuations or instability of bus voltages caused by malicious attacks. Moreover, an aperiodic communication mechanism is employed using the local and neighbors' current states stored in the zero-order holder to determine the communication instants. The proposed resilient aperiodic control achieves proportional load current sharing and maintains the weighted average bus voltage invariant simultaneously. Voltage drift under DoS attacks can be avoided. Furthermore, sufficient stability conditions are established for control gains concerning the attack parameters. The Lyapunov synthesis shows that the current sharing error can exponentially converge towards an adjustable set, and the weighted average bus voltage can be maintained at its nominal value. The advantages of the proposed control are illustrated by switch-level simulations and a hardware-in-the-loop experiments.
AB - In this article, we present a distributed aperiodic control algorithm for multibus DC microgrids to realize proper current sharing and voltage regulation under denial-of-service (DoS) attacks. To deal with the DoS attacks, an estimation mechanism using only local information is designed when the communication channels are jammed, which avoids persistent load fluctuations or instability of bus voltages caused by malicious attacks. Moreover, an aperiodic communication mechanism is employed using the local and neighbors' current states stored in the zero-order holder to determine the communication instants. The proposed resilient aperiodic control achieves proportional load current sharing and maintains the weighted average bus voltage invariant simultaneously. Voltage drift under DoS attacks can be avoided. Furthermore, sufficient stability conditions are established for control gains concerning the attack parameters. The Lyapunov synthesis shows that the current sharing error can exponentially converge towards an adjustable set, and the weighted average bus voltage can be maintained at its nominal value. The advantages of the proposed control are illustrated by switch-level simulations and a hardware-in-the-loop experiments.
KW - Denial-of-service attack
KW - DoS attack
KW - Eigenvalues and eigenfunctions
KW - Load modeling
KW - Microgrids
KW - Multibus DC microgrid
KW - Silicon
KW - Symmetric matrices
KW - Voltage control
KW - distributed aperiodic aontrol
KW - physical interconnection
KW - distributed aperiodic control
UR - http://www.scopus.com/inward/record.url?scp=85131839201&partnerID=8YFLogxK
U2 - 10.1109/TSG.2022.3180502
DO - 10.1109/TSG.2022.3180502
M3 - Journal article
AN - SCOPUS:85131839201
SN - 1949-3053
VL - 13
SP - 4815
EP - 4827
JO - IEEE Transactions on Smart Grid
JF - IEEE Transactions on Smart Grid
IS - 6
ER -