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Dr. Iasonas Kouveliotis-Lysikatos
KTH - Royal Institute of Technology

Basic Info


Research Keywords & Expertise

0 smart grid and distributed systems
0 Distributed optimization algorithms
0 Hydro and thermal scheduling
0 Electricity market analysis and simulation
0 Distribution system operation and control

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smart grid and distributed systems
Smart grid and energy systems
Distribution system operation and control

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Journal article
Published: 27 March 2021 in Energies
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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.

ACS Style

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 Style

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 (7):1862.

Chicago/Turabian Style

Alexandros-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.

Journal article
Published: 05 March 2021 in Energies
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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.

ACS Style

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 Style

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 (5):1425.

Chicago/Turabian Style

Iasonas 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.

Journal article
Published: 28 April 2020 in IEEE Transactions on Smart Grid
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ACS Style

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 Style

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 (5):4227-4235.

Chicago/Turabian Style

Maedeh 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.

Conference paper
Published: 01 October 2018 in 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)
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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.

ACS Style

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 Style

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.

Chicago/Turabian Style

Iasonas 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.

Conference paper
Published: 01 January 2018 in Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2018)
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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

ACS Style

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 Style

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.).

Chicago/Turabian Style

A. 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.).

Journal article
Published: 30 October 2017 in IEEE Transactions on Smart Grid
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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.

ACS Style

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 Style

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 (2):1465-1476.

Chicago/Turabian Style

Iasonas 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.

Conference paper
Published: 01 October 2017 in CIRED - Open Access Proceedings Journal
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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.

ACS Style

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 Style

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 (1):1673-1677.

Chicago/Turabian Style

Iasonas 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.

Conference paper
Published: 01 June 2017 in 2017 IEEE Manchester PowerTech
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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.

ACS Style

Iasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. Distributed economic dispatch considering transmission losses. 2017 IEEE Manchester PowerTech 2017, 1 -6.

AMA Style

Iasonas Kouveliotis-Lysikatos, Nikos Hatziargyriou. Distributed economic dispatch considering transmission losses. 2017 IEEE Manchester PowerTech. 2017; ():1-6.

Chicago/Turabian Style

Iasonas Kouveliotis-Lysikatos; Nikos Hatziargyriou. 2017. "Distributed economic dispatch considering transmission losses." 2017 IEEE Manchester PowerTech , no. : 1-6.

Journal article
Published: 08 March 2017 in IEEE Transactions on Smart Grid
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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.

ACS Style

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 Style

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 (6):2999-3008.

Chicago/Turabian Style

Kyriaki 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.

Article
Published: 01 February 2017 in IET Generation, Transmission & Distribution
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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.

ACS Style

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 Style

Iasonas 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 Style

Iasonas 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.

Conference paper
Published: 01 January 2016 in CIRED Workshop 2016
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ACS Style

I. Kouveliotis-Lysikatos; D. Koukoula; A. Dimeas; N. Hatziargyriou; S. Makrynikas. Overview of Decentralized Distribution System Operation Techniques. CIRED Workshop 2016 2016, 1 .

AMA Style

I. Kouveliotis-Lysikatos, D. Koukoula, A. Dimeas, N. Hatziargyriou, S. Makrynikas. Overview of Decentralized Distribution System Operation Techniques. CIRED Workshop 2016. 2016; ():1.

Chicago/Turabian Style

I. Kouveliotis-Lysikatos; D. Koukoula; A. Dimeas; N. Hatziargyriou; S. Makrynikas. 2016. "Overview of Decentralized Distribution System Operation Techniques." CIRED Workshop 2016 , no. : 1.

Conference paper
Published: 01 September 2015 in 2015 18th International Conference on Intelligent System Application to Power Systems (ISAP)
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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.

ACS Style

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 Style

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.

Chicago/Turabian Style

Iasonas 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.

Conference paper
Published: 01 June 2015 in 2015 IEEE Eindhoven PowerTech
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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.

ACS Style

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 Style

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.

Chicago/Turabian Style

Iasonas 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.

Conference paper
Published: 01 January 2014 in MedPower 2014
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ACS Style

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 Style

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.

Chicago/Turabian Style

G. 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.