Influence of non-dispatchable energy sources on the dynamic performance of MicroGrids

Martínez, Julio Rojas; Saidel, Marco Antônio; Fadigas, Eliane Aparecida Faria Amaral

doi:10.1016/j.epsr.2015.09.008

Cited by 12 publications

(7 citation statements)

References 11 publications

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“…The case study presented here was based on the R&D Project "Microgrids with intermittent sources applied in isolated areas", presented by the Energy Group of the Department of Automation and Electrical Engineering of Polytechnic School-USP in the year of 2012 (Martinez et al, 2016). The main objective of this project was to supply energy to small isolated communities in the interior of the Amazon.…”

Section: Application Of the Proposed Methods To Microgridsmentioning

confidence: 99%

Microgrid System Design Based On Model Based Systems Engineering And Goal-Oriented Requirements Engineering

Postigo

Martínez²,

Silva

2020

Anais Do Congresso Brasileiro De Automática 2020

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Microgrids appear as a practical, clean and reliable solution to meet the demand of populations that, for various reasons, do not have access to electricity. The complexity of microgrid systems, requires considerable engineering eort in the design process. To design this type of complex systems, new approaches, methods, concepts and engineering tools are needed. Where, the requirements analysis has a preponderant role to better characterize, understand and specify the application domain and the problem that the microgrids must solve. This work proposes the introduction of a formal analysis of requirements in the life cycle of microgrid systems, using IEC 61850 as a reference architecture. The requirements would be represented in an Object Oriented Requirements Engineering (GORE) approach, using specically visual diagrams based on the KAOS (Keep All Objectives Satised) method, where the operation and control of the network will be formally represented. The requirements analysis is presented using a combined representation that uses the GORE and Petri Nets methodology for dynamic modeling and formal verication. A case study for small communities in the Amazon rainforest is used as a case study for the proposed method.

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Section: Application Of the Proposed Methods To Microgridsmentioning

confidence: 99%

Microgrid System Design Based On Model Based Systems Engineering And Goal-Oriented Requirements Engineering

Postigo

Martínez²,

Silva

2020

Anais Do Congresso Brasileiro De Automática 2020

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“…The proposed method was applied in a case study based on the R&D Project "Minigrid with intermittent sources to serve isolated areas", which was a project conceived by a research group and implemented in an isolated community in 2012 [39]. The project's main goal was to develop and implement a solar-diesel battery microgrid, which we take as the system-as-is.…”

Section: Case Study: Energy Supply In An Isolated Communitymentioning

confidence: 99%

A Model-Based and Goal-Oriented Approach for the Conceptual Design of Smart Grid Services

2021

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A solid demand to integrate energy consumption and co-generation emerged worldwide, motivated, on one hand, by the need to diversify and enhance energy supply, and, one the other hand, by the pressure to attend to the requirements of a heterogeneous class of users. The coupling between energy service provision and final users also includes balancing user needs, eliminating excesses, and optimizing energy supply while avoiding blackouts. Another motivation is the challenge of having sustainable sources and many adapted to the user ecosystem. Altogether, these motivations lead to more abstract design approaches to co-generation-distributed systems, such as those based on goal-oriented requirements used to model smart grids. This work considers the available design practices and its difficulties in proposing a new method capable of producing a flexible requirement model that could serve for design and maintenance purposes. We suggest coupling the approach based on goal-oriented requirements with model-based engineering to support such a model. The expected result is a sound and flexible requirements model, including a model for the interaction with the final user (now being considered a producer and consumer simultaneously). A case study is presented, wherein a small energy service system in an isolated community in the Amazon rain forest was designed.

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“…This Generally, the bi-directional battery inverter provides this reference; however, this can also be provided by the genset. Today, the bi-directional battery inverter is generally associated with the use of the V/f droop functions (droop control) for compatible parallel operation with a genset [32]. Note that by combining the two previous topologies (DCand AC-coupling), it is possible to create a combined AC-DC-coupling topology, with part of the solar system connected directly to the DC bus and part to the AC side.…”

Section: Comparative Analysesmentioning

confidence: 99%

“…However, to reduce the consumption of fossil fuels and to minimize the need for maintaining gensets, the use of renewable energy sources, such as solar, wind, and biomass, combined with gensets is becoming more common [4,17,21,23,25,[29][30][31][32]. Another important factor to consider is the season throughout the year, i.e., Ayodele et al [33] demonstrated that during the dry season, the combination of Photovoltaic (PV)-wind power is the best renewable energy generation option, meanwhile, the best renewable energy generator option for the rainy season is the combination of PV-wind power-hydrokinetic turbine.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Topologies for Autonomous Hybrid Microgrids in Remote Non-Interconnected Communities in the Amazon Region

et al. 2020

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This work presents a detailed comparative analysis of dispersed versus centralized Alternating Current (AC)-coupling topologies and AC-coupling versus Direct Current (DC)-coupling topologies in autonomous Photovoltaic (PV)-diesel-battery microgrids for remote/isolated communities in the Brazilian Amazon region. The comparison concerned the power losses occurring in power conversion devices and in a low-voltage distribution network by using the balance-of-system (BOS) efficiency as a performance index. The analyses were performed by an analytical approach and by detailed computer simulations in MATLAB/Simulink software. Based on the matching factor (MF), the gain obtained in BOS efficiency is 1.5% for low values of the MF, and for high values of the MF, the centralized topology has the same BOS efficiency as the dispersed topology. In conclusion, this factor proved to be useful as a design parameter for selecting the optimal topology of a PV-diesel-battery microgrid.

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Influence of non-dispatchable energy sources on the dynamic performance of MicroGrids

Cited by 12 publications

References 11 publications

Microgrid System Design Based On Model Based Systems Engineering And Goal-Oriented Requirements Engineering

Microgrid System Design Based On Model Based Systems Engineering And Goal-Oriented Requirements Engineering

A Model-Based and Goal-Oriented Approach for the Conceptual Design of Smart Grid Services

Performance Analysis of Topologies for Autonomous Hybrid Microgrids in Remote Non-Interconnected Communities in the Amazon Region

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