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Yang, Zhe (author), Liu, Zhou (author), Zhang, Qi (author), Chen, Zhe (author), de Jesus Chavez, Jose (author), Popov, M. (author)The traditional fault control strategy of converter-interfaced renewable energy sources (CIRESs) may bring about a lower sensitivity level or misoperation of fault component-based directional elements. To overcome this problem, a new control scheme is proposed to adjust sequence impedance angles of CIRESs by computing suitable current...journal article 2023
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- Astero, Poria (author), Bai, Feifei (author), Disfani, Vahid (author), Vergara Barrios, P.P. (author) contribution to periodical 2023
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Malamaki, Kyriaki-Nefeli D. (author), Fu, A. (author), Mauricio, Juan Manuel (author), Cvetkovic, M. (author), Demoulias, Charis S. (author)As the penetration of Converter-Interfaced Dis-tributed Renewable Energy Sources (CI-DRES) increases, several problems are revealed in electric power systems, e.g., power quality issues, reverse power flows and frequency instability. A solution to tackle these issues is the mitigation of high CI-DRES active power ramp-rates (RRs) by utilizing...conference paper 2023
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Auguadra, Marco (author), Ribo-Perez, D.G. (author), Gómez-Navarro, Tomás (author)The intermittent nature of the renewable energy sources with the greater potential, wind and solar, requires dealing with temporary mismatches between demand and supply. The object of this study is to assess the Spanish energy plan from a system perspective regarding the energy storage requirements to meet electricity demand with high...journal article 2023
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Liu, Zhou (author), Mirhosseini, S.S. (author), Liu, L. (author), Popov, M. (author), Ma, Kaiqi (author), Hu, Weihao (author), Jamali, Sadegh (author), Palensky, P. (author), Chen, Zhe (author)To promote the integration of renewable energy resources into modern energy systems, high-voltage dc (HVdc) and circuit breaker (CB) technologies have become critical to achieving secure and efficient energy transmission. This article reviews the technical development of the related areas, compares diverse breaker concepts and topologies,...journal article 2022
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Chen, Jie (author), Gallo, A.J. (author), Yan, Shuo (author), Parisini, Thomas (author), Yuen Ron Hui, Shu (author)With increasing installations of grid-connected power electronic converters in the distribution network, there is a new trend of using distributed control in a cyber layer to coordinate the operations of these power converters for improving power system stability. However, cyber-attacks remain a threat to such distributed control. This paper...journal article 2022
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Ahmad, A. (author), Qin, Z. (author), Wijekoon, Thiwanka (author), Bauer, P. (author)The emphasis on clean and green technologies to curtail greenhouse gas emissions due to fossil fuel-based economies has originated the shift towards electric mobility. As on-road electric vehicles (EVs) have shown exponential growth over the last decade, so have the charging demands. The provision of charging facilities from the low-voltage...journal article 2022
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Carli, Raffaele (author), Cavone, Graziana (author), Pippia, T.M. (author), De Schutter, B.H.K. (author), Dotoli, Mariagrazia (author)This paper focuses on the control of microgrids where both gas and electricity are provided to the final customer, i.e., multi-carrier microgrids. Hence, these microgrids include thermal and electrical loads, renewable energy sources, energy storage systems, heat pumps, and combined heat and power units. The parameters characterizing the...journal article 2022
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Katsaprakakis, Dimitris Al (author), Proka, Antonia (author), Zafirakis, Dimitris (author), Damasiotis, Markos (author), Kotsampopoulos, Panos (author), Hatziargyriou, Nikos (author), Dakanali, Eirini (author), Arnaoutakis, George (author), Xevgenos, Dimitris (author)Energy transition in islands constitutes a major challenge. Apart from a necessity, it can also be a great opportunity for sustainable social and economic development. Toward this direction, a new, promising movement has emerged recently in Greek islands. Straight from the roots of the insular population, development of energy communities...review 2022
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Okur, Ö. (author), Heijnen, P.W. (author), Lukszo, Z. (author)Flexibility coming from consumers in residential and service sectors has received significant attention to deal with uncertainty and variability of renewable energy sources. Since these consumers are too small individually to participate in the electricity markets, their assets can be pooled by an aggregator. The aggregator can implement...review 2021
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Wang, N. (author), Verzijlbergh, R.A. (author), Heijnen, P.W. (author), Herder, P.M. (author)Variable Renewable Energy Sources (VRES) are characterized by intensive land-use and variable production. In existing optimization models that minimize the total cost of the energy system, location-specific VRES production profiles are often used to estimate VRES potential, but land-use and land cover aspects have been largely ignored. In this...journal article 2020
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Nikolakakos, Christos (author), Mushtaq, U. (author), Palensky, P. (author), Cvetkovic, M. (author)Renewable Energy Sources (RES), and especially wind turbines (WT) as the most mature technology, will provide a large share of energy generation in a future sustainable power system. This development introduces several challenges that need to be addressed in order to ensure a safe transition away from the fossil-fuel based generation. One of the...conference paper 2020
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Voulis, N. (author)This thesis demonstrates that heterogeneous spatio-temporal demand profiles are required for a realistic representation of urban energy systems. This is needed to prepare them for the energy transition. Therefore, existing and future urban energy system models should be expanded with more detailed spatio-temporal local demand data that account...doctoral thesis 2019
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Shen, Yanfeng (author), Wang, Huai (author), Al Durra, Ahmed (author), Qin, Z. (author), Blaabjerg, Frede (author)This paper proposes a new series resonant DC-DC converter with four configurable operation states depending on the input voltage and output voltage levels. It suits well for the DC-DC stage of grid-connected photovoltaic (PV) systems with a wide-input voltage range and different grid voltage levels, i.e., 110/120 V and 220/230/240 V. The...journal article 2019
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Sanchez, Francisco (author), Cayenne, Joshua (author), González-Longatt, Francisco (author), Rueda, José L. (author)The increased adoption of renewable energy generation is reducing the inertial response of the Great Britain (GB) power system, which translates into larger frequency variations in both transient and pseudo-steady-state operation. To help mitigate this, National Grid, the transmission system operator in GB, has designed a control scheme...journal article 2019
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Alshehri, F. A. (author), Rueda, José L. (author), Perilla Guerra, A.D. (author), Tuinema, B.W. (author), van der Meijden, M.A.M.M. (author), Palensky, P. (author), Gonzalez-Longatt, F. (author)The increase in renewable energy sources in addition to the decrease in conventional synchronous generators is leading to significant challenges for the power system operators to maintain generation load balance and to manage the system's decreasing inertia. Proton Exchange Membrane (PEM) fuel cells are characterised by high current density...conference paper 2019
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Noussan, M. (author), Roberto, R. (author), Nastasi, B. (author)Power Grids face significant variability in their operation, especially where there are high proportions of non-programmable renewable energy sources constituting the electricity mix. An accurate and up-to-date knowledge of operational data is essential to guaranteeing the optimal management of the network, and this aspect will be even more...journal article 2018
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Wang, N. (author), Heijnen, P.W. (author), Verzijlbergh, R.A. (author), Kunneke, R.W. (author), Herder, P.M. (author)Dutch regional municipalities increasingly take an active role in the transition to more sustainable and autonomous energy supply systems, using local energy sources like wind, solar and biomass. The ambition, on the one hand, concerns how an optimal local energy supply system can be designed such that local energy targets can be realized with...abstract 2018
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Vasan Ashok, Vijay (author), Chandra Mouli, G.R. (author), van der Burgt, Jos (author), Peýate Vera, Santiago (author), Huibers, Martijn (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)EV Charging is expected to be a significant load on the grid in the future. But they can also be a part of the solution to grid violations. As the amount of renewable energy generation increases, there is a large amount of power flowing in the reverse direction in the distribution network, which is undesirable. To reduce this, EVs can charge at...conference paper 2016
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Korkas, Christos D. (author), Baldi, S. (author), Michailidis, Iakovos (author), Boutalis, Yiannis (author), Kosmatopoulos, Elias B. (author)Microgrids equipped with small-scale renewable-energy generation systems and energy storage units offer challenging opportunity from a control point of view. In fact, in order to improve resilience and enable islanded mode, micro-grid energy management systems must dynamically manage controllable loads by considering not only matching energy...conference paper 2016
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