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
Distributed event-triggered control of DC microgrids with output saturation constraint
TL;DR: In this article , a distributed event-triggered secondary control for islanded DC microgrids that is subject to output saturation is proposed, which only updates its control input when the trigger condition is met, instead of updating the control signal periodically.
Proceedings ArticleDOI
Fractional Order Control with Super Twisting Observer for AC Microgrid
TL;DR: In this paper, a fractional-order continuous control with a modified super twisting disturbance observer (STDO) for a microgrid (MG) is proposed to achieve chattering free finite time response with no singularity problem.
Book ChapterDOI
Delay resilient networked control with application to microgrids: Multiagent and fuzzy control approaches
TL;DR: In this paper, the authors provide two delay-tolerant control protocols for each of the distributed and centralized controllers, which are able to tolerate the delay in the communication links.
Journal ArticleDOI
Providing a control method of BTB-VSC Converters under unbalanced faults
TL;DR: In this article , two micro-grids connected to the grid are studied using a back-to-back (BTB)-voltage source converters (VSC) converter.
Proceedings ArticleDOI
Multi-Bus-Based Distributed Secondary Voltage Control for Microgrids
TL;DR: In this article , a multi-bus-based distributed control method of micro-grids is proposed to achieve voltage control among the points of DGs and loads, and a nonlinear control theory is introduced into the distributed algorithm to improve the convergence rate.
References
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Journal ArticleDOI
Hierarchical control of droop-controlled DC and AC microgrids — a general approach towards standardization
TL;DR: The hierarchical control derived from ISA-95 and electrical dispatching standards to endow smartness and flexibility to MGs is presented and results are provided to show the feasibility of the proposed approach.
Journal ArticleDOI
Modeling, Analysis and Testing of Autonomous Operation of an Inverter-Based Microgrid
TL;DR: In this paper, the authors developed a model for autonomous operation of inverter-based micro-grids, where each sub-module is modeled in state-space form and all are combined together on a common reference frame.
Journal ArticleDOI
Advanced Control Architectures for Intelligent Microgrids—Part I: Decentralized and Hierarchical Control
TL;DR: Decentralized, distributed, and hierarchical control of grid-connected and islanded microgrids that mimic the behavior of the mains grid is reviewed.
Journal ArticleDOI
Hierarchical Structure of Microgrids Control System
Ali Bidram,Ali Davoudi +1 more
TL;DR: This paper reviews the status of hierarchical control strategies applied to microgrids and discusses the future trends.
Book
Cooperative Control of Dynamical Systems: Applications to Autonomous Vehicles
TL;DR: In this paper, a new framework based on matrix theory is proposed to analyze and design cooperative controls for a group of individual dynamical systems whose outputs are sensed by or communicated to others in an intermittent, dynamically changing, and local manner.