Energy management strategy for a renewable-based residential microgrid with generation and demand forecasting

Pascual, Juan I.; Barricarte, Javier; Sanchis, Pablo; Marroyo, Luis

doi:10.1016/j.apenergy.2015.08.040

Cited by 191 publications

(118 citation statements)

References 23 publications

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“…Управле-ние режимом в данном случае направлено на сокращение необходимых резервов мощ-ности с учётом требуемого уровня надёж-ности электроснабжения и качества элек-троэнергии. При этом рыночный механизм в рамках микросети организован на основе подходов [4][5].…”

Section: Abstract: Blockchain Microgrid Photovoltaics Distributed unclassified

Development of the Algorithm for Controlling Electrical Regimes of the Isolated Electric Power System Using the Distributed Ledger

Shishkov¹,

Soldusova²,

Pronichev³

2017

ФИ (FR)

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Одним из перспективных направлений для поиска решений задач управления режимами и коммерче-ского учёта электроэнергии в электроэнергетических системах является применение технологий распреде-лённого реестра -Вlockchain. В работе предложен алгоритм работы автоматизированной системы управ-ления режимами работы изолированной электрической сети с возобновляемыми источниками энергии, направленный на сокращение требуемого резерва генерирующей мощности. Математическое моделирова-ние и расчет электрических режимов микрогрида были произведены в программе RastrWin3 с целью учета потерь в электроэнергетической системе. В процессе моделирования была получена зависимость мощности на балансирующем узле от количества узлов нагрузки для разного отношения собственной генерации к по-треблению в узле. Расчеты показывают, что использование распределённой генерации в малых изолирован-ных энергосистемах является экономически оправданным. One of the promising directions for finding solutions to the problems of regimes management and commercial electricity accounting in electric power systems is the application of distributed ledger technologies -blockchain. The algorithm of operation of an automated energy resource management system aimed at reducing the required capacity reserve is proposed. Mathematical modeling and calculation of the microgrid electric regimes were performed in the RastrWin3 program with the aim of accounting for losses in the electric power system. During the simulation it was obtained dependence of the power at the slack node from the number of load nodes for a different ratio of own generation to consumption in the node. The use of distributed generation is economically justified in small isolated electricity system. Keywords: Blockchain, microgrid, photovoltaics, distributed generationСовременная электроэнергетика -одна из самых наукоёмких и технологич-ных отраслей промышленности. Одним из перспективных направлений для по-иска решений задач управления режима-ми и коммерческого учёта электроэнер-гии в электроэнергетических системах является применение технологий рас-пределённого реестра -Вlockchain, что обусловлено повышением доступности возобновляемых источников энергии, объединяемых в системы с распределён-ной генерацией [1][2][3].В настоящее время в РФ ввиду зако-нодательных ограничений, налагаемых на операции на розничном и оптовых рынках электроэнергии, применение систем с рас-пределенной генерацией затруднено для энергосистем, работающих параллельно с объединенными энергосистемами. Однако основанные на технологиях распределённо-го реестра принципы функционирования рынка электрической энергии возможно применить в рамках небольших изолиро-ванных энергосистем -микрогридов. На данный момент около 40 % территории РФ не имеют связи с единой энергосистемой.Для осуществления электроснабжения на данных территориях существуют три ос-новные альтернативы:1. Строительство ЛЭП. Однако данный способ является самым неэкономичным, поскольку сетевые организации будут нести серьезные убытки от длинных линий при их малой загр...

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Section: Abstract: Blockchain Microgrid Photovoltaics Distributed unclassified

Development of the Algorithm for Controlling Electrical Regimes of the Isolated Electric Power System Using the Distributed Ledger

Shishkov¹,

Soldusova²,

Pronichev³

2017

ФИ (FR)

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“…A central controller was designed in [39] to compensate for the power fluctuation caused by the renewable generation in the microgrid by coordinating the operation of heat pumps and ESS modeled as a two-tank energy storage device. Most existing works [30][31][32][33][34][35][36] related to the life cycle of ESS with its SOC assumed that no significant maintenance costs were incurred by ESS as long as ESS was not overcharged or over-discharged beyond the limits of SOC. Meanwhile, some limited studies [37][38][39] that considered the ESS models with more comprehensive degradation effects during optimization tend to employ a nonlinear mathematical formulation, which is generally not feasible for real-time applications.…”

Section: Review Of Existing Literaturementioning

confidence: 99%

“…In [31], a similar HES was deployed and the operation of ESS was controlled using a multi-agent FLC by referring to the SOC of both the DC bus and ESS. Another energy management scheme used to minimize the grid power fluctuations or consumption of a residential grid-connected microgrid while keeping the SOC of ESS within secure limits was reported in [32][33][34]. The optimal operation of a grid-connected HES consisting of PVS, fuel cell, and ESS was formulated in [35], using MILP to minimize either the running costs or the CO 2 emissions.…”

Section: Review Of Existing Literaturementioning

confidence: 99%

Optimal Charging and Discharging Scheduling for Electric Vehicles in a Parking Station with Photovoltaic System and Energy Storage System

2017

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Abstract:The economic and environmental benefits brought by electric vehicles (EVs) cannot be fully delivered unless these vehicles are fully or partially charged by renewable energy sources (RES) such as photovoltaic system (PVS). Nevertheless, the EV charging management problem of a parking station integrated with RES is challenging due to the uncertain nature of local RES generation. This paper aims to address these difficulties by deploying an energy storage system (ESS) in parking stations and exploiting the charging and discharging scheduling of EVs to achieve better utilization of intermittent PVS for EV charging. A real-time charging optimization scheme is also formulated, using mixed-integer linear programming (MILP) to coordinate the charging or discharging power of EVs along with the power dispatches of power grid and ESS based on the vehicles' charging or discharging priorities and electricity price preferences. Extensive simulations show that the proposed approach not only maximizes the satisfaction of EV owners in terms of fulfilling all charging and discharging requests, but also minimizes the overall operational cost of the parking station by prioritizing the utilization of energy from PVS, ESS, and scheduling of every EV's charging and discharging.

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“…Microgrid scheduling is reviewed from various viewpoints like modeling techniques and reliability [3], energy management based on demand response [4], and generation/demand forecasting [5]. In general, the objectives of the models for the optimal design and scheduling of microgrids are cost-minimization problems under a variety of different constraints [6,7].…”

Section: State Of the Artmentioning

confidence: 99%

Economic Assessment and Business Models of Rooftop Photovoltaic Systems in Multiapartment Buildings: Case Studies for Austria and Germany

Fina

Fleischhacker

Auer

et al. 2018

Journal of Renewable Energy

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This paper analyses the profitability and business models of shared, nonsubsidized PV systems' usage in multiapartment buildings in Austria in the context of legislative amendments which came into force in July 2017. In addition, it compares the Austrian results with those of Germany, where significantly higher retail electricity prices determine the profitability benchmark. To that end, a multiobjective optimization model is developed for the optimal dimensioning of PV systems and energy storage facilities in keeping with different end user objectives, ranging from minimizing annual electricity costs to maximizing self-consumption. The results show that the profitability of shared use of nonsubsidized PV systems is marginal in Austria. This means that, based on individual apartment load profiles, the profitability gap ranges between 0 and 40 euros per apartment, whereas the consideration of the building as total load leads to a small cost-saving potential of about 90 euros for the whole building in the best case and thus profitability. In contrast, significant profitability of shared PV systems in multiapartment buildings can be achieved in Germany, where the renewable energy surcharge results in high retail electricity prices. At present, different business models, accounting and billing concepts, are being tested in these countries to learn about the best-practice concepts.

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Energy management strategy for a renewable-based residential microgrid with generation and demand forecasting

Cited by 191 publications

References 23 publications

Development of the Algorithm for Controlling Electrical Regimes of the Isolated Electric Power System Using the Distributed Ledger

Development of the Algorithm for Controlling Electrical Regimes of the Isolated Electric Power System Using the Distributed Ledger

Optimal Charging and Discharging Scheduling for Electric Vehicles in a Parking Station with Photovoltaic System and Energy Storage System

Economic Assessment and Business Models of Rooftop Photovoltaic Systems in Multiapartment Buildings: Case Studies for Austria and Germany

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