Hybrid fast charging stations with battery storage and local renewable generation can facilitate low-carbon electric vehicle (EV) charging, while reducing the stress on distribution grid. This paper proposes an energy management system (EMS) for a novel multi-battery design that directly connects its strings to other DC components through busbar matrix without need interfacing power converters. The EMS has two primary control tasks: (i) allocating microgrid components, in this case...

The paper presents the scope and research activities, both analytical experimental, to be carried out on Danish Island of Bornholm under 4-year (2019-2023) H2020 Insulae project. two use cases taking place in Denmark are described. first case is dedicated modelling testing a low-voltage DC microgrid comprising battery storage, renewable energy sources, an EV fast charger, towards providing grid services. second investigates potential renewable-driven virtual power plant embracing different...

This paper introduces a novel design of an electric vehicle (EV) fast charging station, consisting battery energy storage system (BESS) with reconfigurable cell topology. The BESS comprises two strings that decouple the power flow between EV and grid, to enable powers above grid capacity. is achieved by equipping cells semiconductor switches serves main purposes. First, it aims at solving unbalance issues increase safety, reliability, lifetime battery. Second, enables actively control...

Biogas plants may support the transformation towards renewable-based and integrated energy systems by providing dispatchable co-generation as well opportunities for biogas upgrading or power-to-X conversion. In this paper, a simulation model that comprises main dynamics of internal processes plant is developed. Based on first-order kinetics anaerobic digestion process, production an input feeding schedule raw material can be estimated. The output in terms electrical thermal validated against...

To facilitate the integration of volatile renewable energy sources (RES), electric vehicle (EV) fleets are considered valuable flexibility assets. With their storage capability, they can contribute to compensating for fluctuations and providing balancing support when integrated in a virtual power plant (VPP). This paper investigates response an EV fleet wind by accounting non-synchronized activation time discrete modulation charging current. The influence is further investigated comparing...

In this study, we introduce a battery energy storage system (BESS) with reconfigurable cell topology as the direct power source for fast-charging of electric vehicles (EVs). proposed scenario, BESS is following charging request EV by changing its in real time fashion. The modelled at level order to demonstrate design, and linked an model. simulation results confirm that can maintain balanced states while voltage satisfactory precision. However, approach adaptive switching shows be not...

To secure balanced operation of electric networks and mitigate costly grid reinforcements, distributed generation (DG) units play a role in providing flexibility activation services. This paper analyses high-resolution measurements reports lessons learnt from experimental active power control (APC) installed DG – two PV plants, wind farm, biogas plant on the Danish island Bornholm. The evaluates how quickly these can respond to requests accurate precise their output is when following...

Abstract The Arctic is a specific geographical region with extreme climate conditions, vulnerable environment, but rather intensive ongoing industrialization. requires alternative solutions to provide energy supply the consumers due growing demand and small-scale decentralized character of supply. At moment, largest part consumption in covered by hydrocarbon resources delivered from mainland. Renewable technologies may be efficiently implemented cover needs small scale Russian Arctic, at...

Biogas power plants play a vital role in the structure of integrated energy systems to further decarbonize sector. On one hand, they can facilitate broad integration variable renewable sources; on other, directly interlink different domains and provide multi-energy services. This paper provides an overview possibilities potentials biogas providing flexibility towards islanded systems. To this end, we present model that includes most relevant dynamics from electrical engineering perspective....

The article discusses the features of renewable energy development in Arctic Zone Russian Federation and gives results resource assessments as well gross technical potential solar, wind waste timber industry Arctic. Maps solar distribution allow researchers to reveal most promising regions for development. Moreover, analyzes power consumption structure consumers region. authors this prepare a database existing planned plants based on sources that allows estimating volume installed capacity,...

Reconfigurable batteries can change their cell topology in real time, which enables them to adapt voltage during operation. This unique capability makes interfacing power converters redundant applications where are directly coupled with other DC components. The present paper characterizes a prototype of reconfigurable battery for high applications, and estimates the efficiency complete operating area. results show that is higher charging levels. losses components enabling design only add...

Batteries are key components of future power systems with high shares renewables. Their fast response enables them to contribute one the most crucial ancillary services — frequency containment reserve. However, longer periods biased pose challenges for batteries due their limited energy capacity. This is particularly in Nordic synchronous area where 100 % certainty delivery required. The present study uses a simulation model three years historical frequency, market, and tariff data, compare...

Smart integration of different energy sectors on islands could serve as a key to achieve their independence and carbon neutrality goals facilitate the large-scale penetration renewables. Demonstration projects play vital role in testing innovative sector-coupling solutions exploring synergies real-life environment. They also help build required market confidence awareness, verify enhance societal acceptance, identify prevent unnecessary risks complications. The aim this paper is provide...

Advantages and disadvantages of various electrochemical energy storages were considered. The results economic efficiency study the storage technologies integrated in photovoltaic power systems backup supply demonstrated. It is shown that under frequent charging discharging lithiated iron phosphate batteries (LiFePO 4 ) vanadium redox are most suitable. For system sealed lead-acid (AGM)

This paper is devoted to calculation of yearly energy production, demanded area and capital costs for first Russian 5 MW grid-tie photovoltaic (PV) plant in Altay Republic that named Kosh-Agach. Simple linear model, involving average solar radiation temperature data, inverter power-efficiency dependence PV modules parameters proposed. Monthly equipment are estimated mono-, polycrystalline amorphous modules. Calculation includes three types initial data—average day every month from NASA SSE,...

Batteries are key components of future power systems with high shares renewables. Their fast response enable them to contribute one the most crucial ancillary services - frequency containment reserve. However, longer periods biased pose challenges for batteries due their limited energy capacity. This is particularly in Nordic synchronous area where 100% certainty delivery required. The present study uses a simulation model three years historical frequency, market, and tariff data, compare...

The widespread adoption of electric vehicles (EVs) is a vital step in the reduction emissions within transport sector. However, development public fast charging infrastructure and proper modeling EV behaviours required to enable this adoption. This paper presents data patterns observed at battery buffered DC microgrid on Danish island Bornholm. sessions single site tend be shorter with lower total energy transfer compared studies wider scope. An atypical uptake charges higher than average...

Self-sufficiency is an important metric for various energy concepts, as it reflects what share of the local consumption covered by generation. However, equation commonly used in literature cannot be applied to systems with storage that actively exchanges grid. With more and incorporating units therefore necessary re-think mathematical definition self-sufficiency. The present paper addresses this issue proposing alternative captures distinctive factors introduced units: (i) Energy exported...

The possibility to adjust the reactive power at point of connection battery systems will enhance flexibility provision in future renewable-based grids. Therefore, Grid Codes require verification capability systems, which can be exploited by system operators. This paper proposes standardized testing procedures verify functions for Code compliance systems. investigated control are (i) control, (ii) factor and (iii) automatic control. designed detect thoroughly, they against following three...

The paper presents an overview of monitoring systems for grid connected and stand-alone solar photovoltaic power plants installations on the territory Russian Federation. relevance is determined by design objectives quite complex heterogeneous from standpoint energy development climatic conditions Russia. methods tools used are reviewed. Elements regulation list tasks proposed. results calculations proposed method engineering prediction performance PV described. Verification monthly average...

The paper proposes replicable testing procedures to verify active power functions for Grid Code compliance of battery systems. investigated control are frequency response, absolute constraint, and ramp rate constraint. considered requirements specified in the Danish systems with rated grid connection below 125 kW. With designed procedures, can be characterized thoroughly, fully examining three required success criteria: accuracy, sensitivity, response time. experimentally applied a 33.5...