A review on control and fault-tolerant control systems of AC/DC microgrids

Ortiz, Leony; González, Jorge W.; Gutiérrez, Luis Felipe Higuita; Llanes‐Santiago, Orestes

doi:10.1016/j.heliyon.2020.e04799

Cited by 57 publications

(31 citation statements)

References 104 publications

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“…Following the design of the MG, a meshed-grid layout with multiple loops is typically selected to improve its reliability and security. The meshed-grid layout incorporates a set of controllable switches, which can ensure the continuity of the service (Ortiz et al, 2020) (Aluko et al, 2020). Furthermore, a critical feature of an MG is optimal selection of the point of common coupling, or more precisely, a static switching node allowing both grid-connected and islanded operation modes.…”

Section: Microgrid and Nanogrid Conceptsmentioning

confidence: 99%

Accelerating the Change to Smart Societies- a Strategic Knowledge-Based Framework for Smart Energy Transition of Urban Communities

et al. 2022

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Urban communities differ in their social, economic, and environmental characteristics, as well as in the approach to energy use. Dynamic energy use and available on-site resources allow interaction with the surroundings and contribute to the key performance indicators of smart cities. This study aimed at proposing systematically a strategic framework for smart cities development by gradually transforming urban communities into smart-energy systems. This framework is based on multidisciplinary practices regarding the staged planning of smart communities and develops smart transformation concepts to enhance capacities toward the preservation, revitalization, livability, and sustainability of a community. In this study, we focused on the concept of smart and zero-carbon communities by using technology and infrastructure. We also considered the premise of the “community” and the related social, technological, and economic aspects. The decision constructs are explained from the perspective of a bottom-up approach ranging from preliminary inspections to economic investment planning. The study proposed a set of decision constructs aimed at allowing planners, engineers, and investors to have different alternatives at their disposal and select a feasible set of practical solutions for smart transformations accordingly.

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Section: Microgrid and Nanogrid Conceptsmentioning

confidence: 99%

Accelerating the Change to Smart Societies- a Strategic Knowledge-Based Framework for Smart Energy Transition of Urban Communities

et al. 2022

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“…The approach to design secondary control can be classified as centralised, decentralised and distributed control architecture [74] as discussed in Sect. 4.1.…”

Section: Secondary Controlmentioning

confidence: 99%

“…Nevertheless, reactive power control by itself can be efficient to mitigate voltage rise problems due to the high R/X ratios in LV distribution networks and the limited reactive power capacity of the PV inverters [4]. Thus, the combination of reactive and active power control is applied as discussed in [62,74,105,112,114,115].…”

Section: Reactive Power Controlmentioning

confidence: 99%

An overview of grid-edge control with the digital transformation

et al. 2021

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Distribution networks are evolving to become more responsive with increasing integration of distributed energy resources (DERs) and digital transformation at the grid edges. This evolution imposes many challenges to the operation of the network, which then calls for new control and operation paradigms. Among others, a so-called grid-edge control is emerging to harmonise the coexistence of the grid control system and DER’s autonomous control. This paper provides a comprehensive overview of the grid-edge control with various control architectures, layers, and strategies. The challenges and opportunities for such an approach at the grid edge with the integration of DERs and digital transformation are summarised. The potential solutions to support the network operation by using the inherent controllability of DER and the availability of the digital transformation at the grid edges are discussed.

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“…An MG may change according to their topology and configuration [17]. Connection or disconnection of the DER produces different topologies that may cause variations in the current directions and limits [18,19].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Analysis of Microgrids Configurations and Topologies

Candelo-Becerra

Santos

2022

Sustainability

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Microgrids have been proposed as a solution to the growing deterioration of traditional electrical power systems and the energy transition towards renewable sources. One of the most important aspects of the efficient operation of a microgrid is its topology, that is, how the components are connected. Some papers have studied microgrid topologies; however, these studies do not perform an exhaustive analysis of the types of topologies, their applications, characteristics, or technical advantages and disadvantages. The contribution of this paper is the integration of the most important functional properties of microgrid topologies in terms of reliability, efficiency, structure, costs, and control methods. The study analyzes 21 topologies divided into six classifications with their respective sub-classifications. The analysis was based on the characteristics of the current (AC or DC), the control mechanisms, the transition between the operating modes, and the operating costs. As a result of the evaluation, it was evidenced that SST-based completely isolated coupled AC topologies, completely isolated two-stage AC decoupled, and multiple microgrids show the best performances. In contrast, the use of two-stage and three-stage partially isolated AC decoupled topologies is not recommended because of their high operating cost and low efficiency and reliability.

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A review on control and fault-tolerant control systems of AC/DC microgrids

Cited by 57 publications

References 104 publications

Accelerating the Change to Smart Societies- a Strategic Knowledge-Based Framework for Smart Energy Transition of Urban Communities

Accelerating the Change to Smart Societies- a Strategic Knowledge-Based Framework for Smart Energy Transition of Urban Communities

An overview of grid-edge control with the digital transformation

Comprehensive Analysis of Microgrids Configurations and Topologies

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