Distributed Voltage Restoration and Current Sharing Control in Islanded DC Microgrid Systems Without Continuous Communication

Guo, Fanghong; Wang, Lei; Chen, Wen; Zhang, Dan; Xu, Qianwen

doi:10.1109/tie.2019.2907507

Cited by 137 publications

(78 citation statements)

References 26 publications

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“…The signal is transmitted when the event‐triggered condition given by (25) is violated. The sequence of triggering instants is denoted by

(}{, t_{k}, k \in Z_{0}^{+})

, which is obtained by the following rule [36]:

t_{k + 1} = \inf (}{, t | t > t_{k}, f ()(, bold-italicy false(t false), δ, β) \geq 0)

where

β > 0, δ > 0, Z_{0}^{+}

non‐negative integer and event generator function

f ()(, bold-italicy false(t false), δ, β)

are given by (18).…”

Section: Et‐geso For Fdi Attack Detectionmentioning

confidence: 99%

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Event‐triggered detection of cyberattacks on load frequency control

Patel

Purwar

2020

IET cyber-phys. syst.

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Modern power systems are extensively interlaced with data communication at various levels leading to increased vulnerability to cyberattacks at individual components as well as integrated controls. An effective cyber protection is, therefore, fast becoming an indispensable requirement for the smart grids. A false data injection (FDI) attack on load frequency control (LFC) is a stealth process, which has devastating consequences while at times may also lead to catastrophic system blackouts. This work comprises detailed analyses of the LFC system vulnerability to FDI attacks. It further develops an efficient eventtriggered detection scheme to leverage the LFC protection against FDI attacks. This developed event-triggered generalised extended state observer (ET-GESO) uses Lyapunov stability analysis to derive the event-triggering condition and thereby reduce the communication burden significantly. The feasibility of the proposed ET-GESO is further studied by demonstrating its Zeno behaviour exclusion. Extensive simulation studies are performed on a peer-reported two-area power transacting system and IEEE 39-bus New England system. A comparison study between the proposed technique and reported Kalman filter-based detection scheme is also performed. Different FDI attack formulations and their detection illustrate the effectiveness of the proposed detection method.

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“…The signal is transmitted when the event‐triggered condition given by (25) is violated. The sequence of triggering instants is denoted by

(}{, t_{k}, k \in Z_{0}^{+})

, which is obtained by the following rule [36]:

t_{k + 1} = \inf (}{, t | t > t_{k}, f ()(, bold-italicy false(t false), δ, β) \geq 0)

where

β > 0, δ > 0, Z_{0}^{+}

non‐negative integer and event generator function

f ()(, bold-italicy false(t false), δ, β)

are given by (18).…”

Section: Et‐geso For Fdi Attack Detectionmentioning

confidence: 99%

“…The signal is transmitted when the event-triggered condition given by (25) is violated. The sequence of triggering instants is denoted by t k , k ∈ Z 0 + , which is obtained by the following rule [36]:…”

Section: Et-geso Designmentioning

confidence: 99%

Event‐triggered detection of cyberattacks on load frequency control

Patel

Purwar

2020

IET cyber-phys. syst.

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“…[3]. DC microgrids carry more advantages in contrast with the ac counterpart especially in terms of efficiency, flexibility, density of power, absence of reactive power and frequency etc., [4]- [6]. Moreover, dc microgrids can be considered as an optimized scheme for low-voltage residential, more electric aircraft, advanced automotive systems and commercial applications [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

Universal Active Power Control Converter for DC-Microgrids With Common Energy Storage

Vuyyuru

Maiti

Chakraborty

et al. 2021

IEEE Open J. Ind. Applicat.

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This paper presents a battery integrated Power Flow Controller (PFC) which is found effective for the interconnection of several dc microgrids. The configuration offers delicate control over load-flow and also provides a way for the integration of Common Energy Storage (CES) to the adjacent grids. The CES is more effective when both the grids have surplus or deficit of power compared to their individual storage capacity (if any). In this paper, a Universal Active Power Control Converter (UAPCC) is proposed (which is basically a three-port converter), where port-1 is connected in parallel with the line, port-2 is connected in series with the line, and port-3 is connected to the CES through a bidirectional dc-dc converter. Relevant control algorithms have been developed for the operation of such system satisfying various system requirements that are inevitable for the interconnection of dc microgrids. The proposed control methods allow decoupled operation of three ports to control power flow between dc grids and CES independently. The complete system along with control methods are initially verified through computer simulation using MATLAB/SIMULINK. Thereafter, a prototype is developed in the laboratory at 380 V level to experimentally validate the concept. The results show effectiveness of the UAPCC for interconnection of dc microgrids with CES.INDEX TERMS Common Energy Storage (CES), DC microgrids, DC power flow controller, DC-DC converters, renewable energy sources (RES).

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“…Consensus of multiagent systems (MASs) has received increasing attention due to its extensive applications in smart factories, smart grids, smart cities, and so on, see References for more details. In such a large‐scale system, each agent communicates and cooperates with its neighbors, and they can accomplish a large number of complex tasks that a single agent cannot accomplish.…”

Section: Introductionmentioning

confidence: 99%

A Markovian jump system approach to consensus of heterogeneous multiagent systems with partially unknown and uncertain attack strategies

Karimi

et al. 2020

Intl J Robust & Nonlinear

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The problem of robust leader-following consensus of heterogeneous multiagent systems subject to deny-of-service attacks is investigated, where attack strategies are partially unknown and uncertain to defender. A Markovian jump system approach is proposed, that is, capable of describing the occurrence of different attack strategies, and the occurring probability of each attack strategy is represented by the transition probability of the Markovian jump model. Then, sufficient conditions are derived such that the output tracking performance can be guaranteed. In order to design the controller gains, some slack matrices are introduced, which can provide some design freedom. Finally, it is shown that the controller design results can be applied to the multivehicle position-tracking system. The simulation results reveal that the consensus performance is much better if one has more statistics information on attacks. K E Y W O R D SMarkovian jump systems, multiagent systems, H ∞ control, consensus, DoS attack INTRODUCTIONConsensus of multiagent systems (MASs) has received increasing attention due to its extensive applications in smart factories, smart grids, smart cities, and so on, see References 1-8 for more details. In such a large-scale system, each agent communicates and cooperates with its neighbors, and they can accomplish a large number of complex tasks that a single agent cannot accomplish. In literature, there are two different kinds of consensus problems, one is leader-less consensus and the other is leader-following one. In the former one, there does not exist leader, while in the latter case, all the following agents shall track the states and outputs of the leader. Taking the Reference 9 as an example, the leader-less consensus problem was studied and the main focus is to devise a state feedback control law, under which all the agent's states can achieve to the average value. The leader-following consensus problem was investigated in Reference 10, where some energy-efficient communication strategies were introduced such that the following agent can track the state of the leader in an energy-efficient way. In Reference 11, a unified framework was proposed for the synchronization of complex networks and the consensus of MASs. More recent works on consensus of MASs have been reported, see, for example, References 12-19 for more details. Int J Robust Nonlinear Control. 2020;30:3039-3053. wileyonlinelibrary.com/journal/rnc

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Distributed Voltage Restoration and Current Sharing Control in Islanded DC Microgrid Systems Without Continuous Communication

Cited by 137 publications

References 26 publications

Event‐triggered detection of cyberattacks on load frequency control

Event‐triggered detection of cyberattacks on load frequency control

Universal Active Power Control Converter for DC-Microgrids With Common Energy Storage

A Markovian jump system approach to consensus of heterogeneous multiagent systems with partially unknown and uncertain attack strategies

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