Journal ArticleDOI
Distributed Robust Finite-Time Secondary Voltage and Frequency Control of Islanded Microgrids
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TLDR
In this article, a distributed cooperative secondary control for both voltage and frequency restoration of an islanded microgrid with droop-controlled inverter-based distributed generators (DGs) is presented.Abstract:
This paper presents a distributed, robust, finite-time secondary control for both voltage and frequency restoration of an islanded microgrid with droop-controlled inverter-based distributed generators (DGs). The distributed cooperative secondary control is fully distributed (i.e., uses only the information of neighboring DGs that can communicate with one another through a sparse communication network). In contrast to existing distributed methods that require a detailed model of the system (such as line impedances, loads, other DG units parameters, and even the microgrid configuration, which are practically unknown), the proposed protocols are synthesized by considering the unmodeled dynamics, unknown disturbances, and uncertainties in their models. The other novel idea in this paper is that the consensus-based distributed controllers restore the islanded microgrid's voltage magnitudes and frequency to their reference values for all DGs within finite time, irrespective of parametric uncertainties, unmodeled dynamics, and disturbances, while providing accurate real-power sharing. Moreover, the proposed method considers the coupling between the frequency and voltage of the islanded microgrid. Unlike conventional distributed controllers, the proposed approach quickly reaches consensus and exhibits a more accurate robust performance. Finally, we verify the proposed control strategy's performance using the MATLAB/SimPowerSystems toolbox.read more
Citations
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Journal ArticleDOI
A Survey on Model-Based Distributed Control and Filtering for Industrial Cyber-Physical Systems
TL;DR: A review of the state-of-the-art of distributed filtering and control of industrial CPSs described by differential dynamics models is presented and some challenges are raised to guide the future research.
Journal ArticleDOI
On the Secondary Control Architectures of AC Microgrids: An Overview
Yousef Khayat,Josep M. Guerrero,Hassan Bevrani,Qobad Shafiee,Rasool Heydari,Mobin Naderi,Tomislav Dragicevic,John W. Simpson-Porco,Florian Dörfler,Mohammad Fathi,Frede Blaabjerg +10 more
TL;DR: All types of SC policies are reviewed and classify from CI-based methods to communication-free policies, including CSC, averaging-based DISC, consensus- based DISC methods, containment pinning consensus, event-triggeredDISC, washout-filter-based DESC, and state-estimation-basedDESC.
Journal ArticleDOI
Optimal Distributed Control for Secondary Frequency and Voltage Regulation in an Islanded Microgrid
TL;DR: An optimal distributed control strategy for the coordination of multiple distributed generators in an islanded microgrid (MG) is proposed and a secondary voltage control approach is presented to regulate the average voltage magnitude of all distributed generators to the desired value and achieve accurate reactive power sharing.
Journal ArticleDOI
Distributed Control Strategies for Microgrids: An Overview
Enrique Espina,Jacqueline Llanos,Claudio Burgos-Mellado,Roberto Cardenas-Dobson,Manuel Martinez-Gomez,Doris Saez +5 more
TL;DR: An overview of the state-of-the-art of distributed cooperative control systems for isolated microgrids is presented and Protocols for cooperative control such as linear consensus, heterogeneous consensus and finite-time consensus are discussed and reviewed.
Journal ArticleDOI
Microgrid control: A comprehensive survey
Sachidananda Sen,Vishal Kumar +1 more
TL;DR: This paper provides a comprehensive survey of different control aspects of MGs, broadly classified under four control strategies: centralized, decentralized, distributed and hierarchical frameworks.
References
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Hierarchical Control of Intelligent Microgrids
TL;DR: In this paper, the main concepts related to the configuration, control, and energy management of intelligent microgrids are reviewed, including black start operation, frequency and voltage stability, active and reactive power flow control, active power filter capabilities, and storage energy management.
Journal ArticleDOI
Secondary Control Scheme for Voltage Unbalance Compensation in an Islanded Droop-Controlled Microgrid
TL;DR: The results show the effectiveness of the proposed control structure in compensating the voltage unbalance in an islanded microgrid.
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Voltage Stability and Reactive Power Sharing in Inverter-Based Microgrids With Consensus-Based Distributed Voltage Control
TL;DR: It is shown that the choice of the control parameters uniquely determines the corresponding equilibrium point of the closed-loop voltage and reactive power dynamics, and a necessary and sufficient condition for local exponential stability of that equilibrium point is given.
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Finite-time consensus for second-order multi-agent systems with disturbances by integral sliding mode
Shuanghe Yu,Xiaojun Long +1 more
TL;DR: The discontinuous and continuous super-twisting protocols upon integral sliding mode (ISM) algorithm are respectively developed to achieve finite-time tracking consensus ofMAS with one leader and finite- time containment consensus of MAS with multiple leaders in spite of the disturbances.
Proceedings ArticleDOI
Control and power management of converter fed microgrids
Charles Sao,Peter W. Lehn +1 more
TL;DR: A voltage-power droop/frequency-reactive power boost (VPD/FQB) control scheme that allows multiple voltage source converters to operate in parallel in a VSC fed microgrid is presented.