Electric Vehicle Charging Strategy in Smart Grids with Distributed Generation

Bruinsma, Gustavo; Carati, Emerson Giovani; Piveta, Marcelo; Salvatti, Gabriel A.; Rech, Cassiano

doi:10.1109/sepoc54972.2022.9976416

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…The coordination method refers to optimal charging/discharging of EVs in recognition of renewable fluctuations to alleviate uncertainties of EV driving patterns and renewable generation. The coordination can be based on market objective [1][2][3][4] or to address operational issues [5][6][7]. The market objective is to take advantage of renewable arbitrage and provide revenues for renewable DGs and EVs.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Integration of EVs and Renewable DGs in Distribution Micro-Grids

Ghofrani

2024

Sustainability

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This paper proposes a multi-objective optimization framework for safe, reliable, and economic integration of electric vehicles (EVs) and renewable distributed generators (DGs) in distribution micro-grids. EV and DG coordination optimization with the use of vehicle-to-grid (V2G) technology along with system reconfiguration optimization is developed to provide collective revenues and address integrational complications that may occur by additional system loading due to EV charging and EV-DG energy exchanges. A Genetic Algorithm (GA) optimizes the EV charging/discharging in synergies with renewable DGs to maximize benefits that can be captured by their collaborative participation in electricity market and through renewable energy arbitrage. The developed EV charging/discharging optimization is implemented in a real 134-bus distribution network and is evaluated for its potential operational implications, namely, increased system losses. A system reconfiguration is then proposed to reduce the system losses by optimizing the flow of power through switching on/off the connections within the micro-grid and/or with other distribution systems. Simulation results demonstrate the efficiency of the proposed method in not only providing collective revenues, but also in enhancing the system operation by reducing the losses of the distribution grid. The collective benefits proposed by the developed optimization and validated by the simulation results facilitate transitioning to clean and eco-friendly sources of energy for generation and transportation, which in turn leads to more sustainable development of societies and communities.

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Section: Introductionmentioning

confidence: 99%

Synergistic Integration of EVs and Renewable DGs in Distribution Micro-Grids

Ghofrani

2024

Sustainability

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Distribution System Reconfiguration Optimization for EV and Renewable DG Integration

Ghofrani,

Tran,

Cauilan

2024

2024 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)

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Electric Vehicles Charging Using Photovoltaic Energy Surplus: A Framework Based on Blockchain

et al. 2023

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In the present day, it is crucial for individuals and companies to reduce their carbon footprints in a society more self-conscious about climate change and other environmental issues. In this sense, public and private institutions are investing in photovoltaic (PV) systems to produce clean energy for self-consumption. Nevertheless, an essential part of this energy is wasted due to lower consumption during non-business periods. This work proposes a novel framework that uses solar-generated energy surplus to charge external electric vehicles (EVs), creating new business opportunities. Furthermore, this paper introduces a novel marketplace platform based on blockchain technology to allow energy trading between institutions and EV owners. Since the energy provided to charge the EV comes from distributed PV generation, the energy’s selling price can be more attractive than the one offered by the retailers—meaning economic gains for the institutions and savings for the users. A case study was carried out to evaluate the feasibility of the proposed solution and its economic advantages. Given the assumptions considered in the study, 3213 EVs could be fully charged by one institution in one year, resulting in over EUR 45,000 in yearly profits. Further, the economic analysis depicts a payback of approximately two years, a net present value of EUR 33,485, and an internal rate of return of 61%. These results indicate that implementing the proposed framework could enable synergy between institutions and EV owners, providing clean and affordable energy to charge vehicles.

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Electric Vehicle Charging Strategy in Smart Grids with Distributed Generation

Cited by 3 publications

References 18 publications

Synergistic Integration of EVs and Renewable DGs in Distribution Micro-Grids

Synergistic Integration of EVs and Renewable DGs in Distribution Micro-Grids

Distribution System Reconfiguration Optimization for EV and Renewable DG Integration

Electric Vehicles Charging Using Photovoltaic Energy Surplus: A Framework Based on Blockchain

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