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In this paper, we investigate the economic benefits of an energy community investing in small-scale photovoltaics (PVs) when local energy trading is operated amongst the community members. The motivation stems from the open research question on whether a community-operated local energy market can enhance the investment feasibility of behind-the-meter small-scale PVs installed by energy community members. Firstly, a review of the models, mechanisms and concepts required for framing the relevant concepts is conducted, while a clarification of nuances at important terms is attempted. Next, a tool for the investigation of the economic benefits of operating a local energy market in the context of an energy community is developed. We design the local energy market using state-of-the-art formulations, modified according to the requirements of the case study. The model is applied to an energy community that is currently under formation in a Greek municipality. From the various simulations that were conducted, a series of generalizable conclusions are extracted.
Alexandros-Georgios Chronis; Foivos Palaiogiannis; Iasonas Kouveliotis-Lysikatos; Panos Kotsampopoulos; Nikos Hatziargyriou. Photovoltaics Enabling Sustainable Energy Communities: Technological Drivers and Emerging Markets. Energies 2021, 14, 1862 .
AMA StyleAlexandros-Georgios Chronis, Foivos Palaiogiannis, Iasonas Kouveliotis-Lysikatos, Panos Kotsampopoulos, Nikos Hatziargyriou. Photovoltaics Enabling Sustainable Energy Communities: Technological Drivers and Emerging Markets. Energies. 2021; 14 (7):1862.
Chicago/Turabian StyleAlexandros-Georgios Chronis; Foivos Palaiogiannis; Iasonas Kouveliotis-Lysikatos; Panos Kotsampopoulos; Nikos Hatziargyriou. 2021. "Photovoltaics Enabling Sustainable Energy Communities: Technological Drivers and Emerging Markets." Energies 14, no. 7: 1862.
In this paper, we present the results from the development and the simulation of a hydro power model for Sweden and Norway, using SpineOpt software and openly available data. We employ (i) hydrological and market data from the Nordic region and (ii) the abstract representation of the multi-vector modelling and simulation engine SpineOpt, to compile an open-source model of a large portion of the hydro power plants of the Nordic region, for conducting realistic hydro power generation studies. We place the hydro power system operation within the structuring of the Nordic electricity market and study the effect that different objectives have on the operational results. By employing the SpineOpt functionalities for automating the transformation of the temporal resolution of the model, we explore the trade-of between its computational burden and accuracy.
Iasonas Kouveliotis-Lysikatos; Angelica Waernlund; Manuel Marin; Mikael Amelin; Lennart Söder. Open Source Modelling and Simulation of the Nordic Hydro Power System. Energies 2021, 14, 1425 .
AMA StyleIasonas Kouveliotis-Lysikatos, Angelica Waernlund, Manuel Marin, Mikael Amelin, Lennart Söder. Open Source Modelling and Simulation of the Nordic Hydro Power System. Energies. 2021; 14 (5):1425.
Chicago/Turabian StyleIasonas Kouveliotis-Lysikatos; Angelica Waernlund; Manuel Marin; Mikael Amelin; Lennart Söder. 2021. "Open Source Modelling and Simulation of the Nordic Hydro Power System." Energies 14, no. 5: 1425.
Maedeh Ghorbanian; Sarineh Hacopian Dolatabadi; Pierluigi Siano; Iasonas Kouveliotis-Lysikatos; Nikos D. Hatziargyriou. Methods for Flexible Management of Blockchain-Based Cryptocurrencies in Electricity Markets and Smart Grids. IEEE Transactions on Smart Grid 2020, 11, 4227 -4235.
AMA StyleMaedeh Ghorbanian, Sarineh Hacopian Dolatabadi, Pierluigi Siano, Iasonas Kouveliotis-Lysikatos, Nikos D. Hatziargyriou. Methods for Flexible Management of Blockchain-Based Cryptocurrencies in Electricity Markets and Smart Grids. IEEE Transactions on Smart Grid. 2020; 11 (5):4227-4235.
Chicago/Turabian StyleMaedeh Ghorbanian; Sarineh Hacopian Dolatabadi; Pierluigi Siano; Iasonas Kouveliotis-Lysikatos; Nikos D. Hatziargyriou. 2020. "Methods for Flexible Management of Blockchain-Based Cryptocurrencies in Electricity Markets and Smart Grids." IEEE Transactions on Smart Grid 11, no. 5: 4227-4235.
The drastic increase of distributed energy resources has inspired the development of decentralized schemes that aim at mitigating the heavy computational burden of centralized control in active distribution grids. In this paper, a novel single-phase distributed load flow tool is developed, that enables the calculation of load flows using only local measurements and exchange of information between electrical neighbours. The Newton-Raphson method is used, with a distributed convex optimization algorithm that avoids the inversion of the Jacobian matrix of the power flow equations and provides a scalable solution. Results are provided that demonstrate the effectiveness of the proposed method.
Iasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. A Distributed Load Flow Solver for Smart Grid Applications. 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe) 2018, 1 -6.
AMA StyleIasonas Kouveliotis-Lysikatos, Nikos Hatziargyriou. A Distributed Load Flow Solver for Smart Grid Applications. 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe). 2018; ():1-6.
Chicago/Turabian StyleIasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. 2018. "A Distributed Load Flow Solver for Smart Grid Applications." 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe) , no. : 1-6.
Inspec keywords: load flow; iterative methods; distribution networks; optimisation; decentralised control; greedy algorithms Subjects: Interpolation and function approximation (numerical analysis); Knowledge engineering techniques; Optimisation; Optimisation techniques; Multivariable control systems; Optimisation techniques; Distribution networks
A. Anastasiou; I. Kouveliotis-Lysikatos; I. Karakitsios; N. Hatziargyriou. Comparing a Simplified Decentralized with an Optimal Centralized Technique for After Fault Reconfiguration of Radial Distribution Grids. Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2018) 2018, 32 (6 pp.) -32 (6 pp.).
AMA StyleA. Anastasiou, I. Kouveliotis-Lysikatos, I. Karakitsios, N. Hatziargyriou. Comparing a Simplified Decentralized with an Optimal Centralized Technique for After Fault Reconfiguration of Radial Distribution Grids. Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2018). 2018; ():32 (6 pp.)-32 (6 pp.).
Chicago/Turabian StyleA. Anastasiou; I. Kouveliotis-Lysikatos; I. Karakitsios; N. Hatziargyriou. 2018. "Comparing a Simplified Decentralized with an Optimal Centralized Technique for After Fault Reconfiguration of Radial Distribution Grids." Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2018) , no. : 32 (6 pp.)-32 (6 pp.).
The increased penetration of intermittent distributed generation in distribution grids causes occasional voltage variations. The ICT infrastructure can provide the appropriate means for novel techniques to handle this kind of problems. The proposed algorithm utilizes a power flow model of the distribution grid and integrates the detection and the solution of the voltage constraint violation into a distributed double layered framework. The optimal solution of the related resource allocation problem involves the control of flexible microgenerators and loads, which can assist the grid by providing ancillary services for voltage control. The method is based on a gradient descent and a consensus algorithm for the distributed calculation of the Lagrangian multipliers. The proposed algorithm is tested in different scenarios in order to demonstrate its effectiveness.
Iasonas N. Kouveliotis-Lysikatos; Despina I. Koukoula; Nikos D. Hatziargyriou. A Double-Layered Fully Distributed Voltage Control Method for Active Distribution Networks. IEEE Transactions on Smart Grid 2017, 10, 1465 -1476.
AMA StyleIasonas N. Kouveliotis-Lysikatos, Despina I. Koukoula, Nikos D. Hatziargyriou. A Double-Layered Fully Distributed Voltage Control Method for Active Distribution Networks. IEEE Transactions on Smart Grid. 2017; 10 (2):1465-1476.
Chicago/Turabian StyleIasonas N. Kouveliotis-Lysikatos; Despina I. Koukoula; Nikos D. Hatziargyriou. 2017. "A Double-Layered Fully Distributed Voltage Control Method for Active Distribution Networks." IEEE Transactions on Smart Grid 10, no. 2: 1465-1476.
In this study, results from the testing procedures of the decentralised techniques developed within the FP7 project DREAM are presented. The techniques are developed for the decentralised distribution system operation. More specifically, for the settlement of short-term energy imbalances at the distribution level in an intra-day market based procedure, the mitigation of voltage deviations and congestion management in the real-time operation domain. The demonstrations were performed in the Meltemi community smart grid pilot site.
Iasonas Kouveliotis-Lysikatos; Despina Koukoula; Ioannis Vlachos; Aris Dimeas; Nikos Hatziargyriou; Stavros Makrynikas. Decentralised distribution system operation techniques: results from the Meltemi community smart grids pilot site. CIRED - Open Access Proceedings Journal 2017, 2017, 1673 -1677.
AMA StyleIasonas Kouveliotis-Lysikatos, Despina Koukoula, Ioannis Vlachos, Aris Dimeas, Nikos Hatziargyriou, Stavros Makrynikas. Decentralised distribution system operation techniques: results from the Meltemi community smart grids pilot site. CIRED - Open Access Proceedings Journal. 2017; 2017 (1):1673-1677.
Chicago/Turabian StyleIasonas Kouveliotis-Lysikatos; Despina Koukoula; Ioannis Vlachos; Aris Dimeas; Nikos Hatziargyriou; Stavros Makrynikas. 2017. "Decentralised distribution system operation techniques: results from the Meltemi community smart grids pilot site." CIRED - Open Access Proceedings Journal 2017, no. 1: 1673-1677.
Novel approaches for the decentralized operation of the power system are gaining attention. In this direction, a fully distributed method is proposed for the economic dispatch problem that takes into account transmission losses. We assume that the total losses are calculated using loss coefficients and that the generators communicate through a peer-to-peer structure calculating the solution in a distributed manner and avoiding the need for a centralized dispatch centre. The problem is formulated as a resource allocation problem and a distributed optimization method based in local replicator equation, is employed to calculate the solution. Simulations results from two case studies are presented.
Iasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. Distributed economic dispatch considering transmission losses. 2017 IEEE Manchester PowerTech 2017, 1 -6.
AMA StyleIasonas Kouveliotis-Lysikatos, Nikos Hatziargyriou. Distributed economic dispatch considering transmission losses. 2017 IEEE Manchester PowerTech. 2017; ():1-6.
Chicago/Turabian StyleIasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. 2017. "Distributed economic dispatch considering transmission losses." 2017 IEEE Manchester PowerTech , no. : 1-6.
The future grid is evolving into a smart distribution network that integrates multiple distributed energy resources (DER) ensuring at the same time reliable operation and increased power quality. In recent years, many research papers have addressed the voltage violation problems that arise from the high penetration of distributed generation (DG). In view of the transition to active network management and the increase in the quantity of collected data, distributed control schemes have been proposed that use pervasive communications to deal with the complexity of smart grid. This paper reviews the recent publications on distributed and decentralized voltage control of smart distribution networks, summarizes their control models, and classifies the solution methodologies. Moreover, it comments on issues that should be addressed in the future and the perspectives of industry applications.
Kyriaki E. Antoniadou-Plytaria; Iasonas N. Kouveliotis-Lysikatos; Pavlos S. Georgilakis; Nikos D. Hatziargyriou. Distributed and Decentralized Voltage Control of Smart Distribution Networks: Models, Methods, and Future Research. IEEE Transactions on Smart Grid 2017, 8, 2999 -3008.
AMA StyleKyriaki E. Antoniadou-Plytaria, Iasonas N. Kouveliotis-Lysikatos, Pavlos S. Georgilakis, Nikos D. Hatziargyriou. Distributed and Decentralized Voltage Control of Smart Distribution Networks: Models, Methods, and Future Research. IEEE Transactions on Smart Grid. 2017; 8 (6):2999-3008.
Chicago/Turabian StyleKyriaki E. Antoniadou-Plytaria; Iasonas N. Kouveliotis-Lysikatos; Pavlos S. Georgilakis; Nikos D. Hatziargyriou. 2017. "Distributed and Decentralized Voltage Control of Smart Distribution Networks: Models, Methods, and Future Research." IEEE Transactions on Smart Grid 8, no. 6: 2999-3008.
The increased complexity of the modern distribution system caused by the installation of a large number of distributed energy resources, dictates the necessity for novel, decentralised schemes for the grid operation. In this study, a fully distributed method for the economic dispatch (ED) problem is proposed that takes into account distribution losses. The solution is reached using only local computations and exchange of messages between adjacent nodes without the need of a central coordinating entity. The algorithm presents plug-and-play capabilities and is self-triggered. More specifically, the ED is formulated as a resource allocation problem and a fully distributed algorithm is employed to acquire the solution that is based on the replicator equation model. It takes into account the technical constraints of the generators and it is extended in order to integrate the distributed calculation of active power losses using distributed estimation of the loss penalty factors. Guarantees for the convergence and optimality of the proposed algorithm are provided along with numerical results that demonstrate the effectiveness and efficiency of the algorithm.
Iasonas Kouveliotis‐Lysikatos; Nikos Hatziargyriou. Fully distributed economic dispatch of distributed generators in active distribution networks considering losses. IET Generation, Transmission & Distribution 2017, 11, 627 -636.
AMA StyleIasonas Kouveliotis‐Lysikatos, Nikos Hatziargyriou. Fully distributed economic dispatch of distributed generators in active distribution networks considering losses. IET Generation, Transmission & Distribution. 2017; 11 (3):627-636.
Chicago/Turabian StyleIasonas Kouveliotis‐Lysikatos; Nikos Hatziargyriou. 2017. "Fully distributed economic dispatch of distributed generators in active distribution networks considering losses." IET Generation, Transmission & Distribution 11, no. 3: 627-636.
I. Kouveliotis-Lysikatos; D. Koukoula; A. Dimeas; N. Hatziargyriou; S. Makrynikas. Overview of Decentralized Distribution System Operation Techniques. CIRED Workshop 2016 2016, 1 .
AMA StyleI. Kouveliotis-Lysikatos, D. Koukoula, A. Dimeas, N. Hatziargyriou, S. Makrynikas. Overview of Decentralized Distribution System Operation Techniques. CIRED Workshop 2016. 2016; ():1.
Chicago/Turabian StyleI. Kouveliotis-Lysikatos; D. Koukoula; A. Dimeas; N. Hatziargyriou; S. Makrynikas. 2016. "Overview of Decentralized Distribution System Operation Techniques." CIRED Workshop 2016 , no. : 1.
In this paper, a fully distributed algorithm is proposed for the economic operation of the distribution grid. This is required in order to balance local generation and loads at parts of the distribution networks, in order to reduce flows in the upstream networks. The algorithm utilizes a population dynamics approach to solve the economic dispatch problem in a distribution network with increased penetration of distributed generation units. It is shown that the local replicator equation guarantees under certain considerations, optimal solution taking into account the technical constraints of the network. Test cases are provided from applications in a realistic distribution network.
Iasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. Decentralized economic dispatch of distributed generators based on population dynamics. 2015 18th International Conference on Intelligent System Application to Power Systems (ISAP) 2015, 1 -6.
AMA StyleIasonas Kouveliotis-Lysikatos, Nikos Hatziargyriou. Decentralized economic dispatch of distributed generators based on population dynamics. 2015 18th International Conference on Intelligent System Application to Power Systems (ISAP). 2015; ():1-6.
Chicago/Turabian StyleIasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. 2015. "Decentralized economic dispatch of distributed generators based on population dynamics." 2015 18th International Conference on Intelligent System Application to Power Systems (ISAP) , no. : 1-6.
The high penetration of photovoltaic systems in low voltage distribution networks can cause power quality problems due to the increased level of harmonics. In this paper an overview of the relevant power quality standards is provided along with an investigation of the harmonics generation in LV networks. Hardware experiments of harmonics measurements of PV inverters are conducted where the influence of the active power output and voltage THD is examined. Different ways of modeling harmonic sources are compared in various simulation scenarios of LV radial networks using the PSCAD-EMTDC software.
Iasonas Kouveliotis-Lysikatos; Panos Kotsampopoulos; Nikos Hatziargyriou. Harmonic Study in LV networks with high penetration of PV systems. 2015 IEEE Eindhoven PowerTech 2015, 1 -6.
AMA StyleIasonas Kouveliotis-Lysikatos, Panos Kotsampopoulos, Nikos Hatziargyriou. Harmonic Study in LV networks with high penetration of PV systems. 2015 IEEE Eindhoven PowerTech. 2015; ():1-6.
Chicago/Turabian StyleIasonas Kouveliotis-Lysikatos; Panos Kotsampopoulos; Nikos Hatziargyriou. 2015. "Harmonic Study in LV networks with high penetration of PV systems." 2015 IEEE Eindhoven PowerTech , no. : 1-6.
G. Messinis; V. Kleftakis; I. Kouveliotis-Lysikatos; A. Rigas; A. Vassilakis; P. Kotsampopoulos; N. Hatziargyriou. Multi-microgrid laboratory infrastructure for smart grid applications. MedPower 2014 2014, 1 .
AMA StyleG. Messinis, V. Kleftakis, I. Kouveliotis-Lysikatos, A. Rigas, A. Vassilakis, P. Kotsampopoulos, N. Hatziargyriou. Multi-microgrid laboratory infrastructure for smart grid applications. MedPower 2014. 2014; ():1.
Chicago/Turabian StyleG. Messinis; V. Kleftakis; I. Kouveliotis-Lysikatos; A. Rigas; A. Vassilakis; P. Kotsampopoulos; N. Hatziargyriou. 2014. "Multi-microgrid laboratory infrastructure for smart grid applications." MedPower 2014 , no. : 1.