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Dr. Rossano Musca
Engineering Department, University of Palermo, Viale delle Scienze, Building n.9, 90128, Palermo Italy

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0 renewable energy sources
0 Dynamic Analysis
0 frequency control
0 system stability
0 Grid integration

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Journal article
Published: 21 July 2021 in Energies
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This work examines the operation of the autonomous power system of a geographical island assuming the integration of significant generation shares from renewable energy sources and the installation of the required storage systems. The frequency stability of the system is investigated considering different operating conditions, in terms of load demand and renewable power generation. The main focus of the work is an original control strategy specifically designed for power converters interfacing storage units to the grid. The proposed strategy is based on an extended frequency droop control, which selects specific droop settings depending on the operating mode—charge or discharge—of the storage unit. A simulation model of the whole electrical system is developed for dynamic analysis. The model also implements the possibility of including specific auxiliary frequency controls for synthetic inertia and primary reserve. The results of the simulation and analysis indicate that the proposed control strategy has a significant positive effect, making the storage units able to provide a fundamental and more effective support to the frequency stability of the system. The application of the proposed control strategy to storage units also reduces the need for a contribution to the frequency control from intermittent and variable sources, making the whole system more robust, stable and reliable.

ACS Style

Mariano Ippolito; Fabio Massaro; Rossano Musca; Gaetano Zizzo. An Original Control Strategy of Storage Systems for the Frequency Stability of Autonomous Grids with Renewable Power Generation. Energies 2021, 14, 4391 .

AMA Style

Mariano Ippolito, Fabio Massaro, Rossano Musca, Gaetano Zizzo. An Original Control Strategy of Storage Systems for the Frequency Stability of Autonomous Grids with Renewable Power Generation. Energies. 2021; 14 (15):4391.

Chicago/Turabian Style

Mariano Ippolito; Fabio Massaro; Rossano Musca; Gaetano Zizzo. 2021. "An Original Control Strategy of Storage Systems for the Frequency Stability of Autonomous Grids with Renewable Power Generation." Energies 14, no. 15: 4391.

Journal article
Published: 28 May 2021 in Sustainability
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There are many different types of energy storage systems (ESS) available and the functionality that they can provide is extensive. However, each of these solutions come with their own set of drawbacks. The acid-base flow battery (ABFB) technology aims to provide a route to a cheap, clean and safe ESS by means of providing a new kind of energy storage technology based on reversible dissociation of water via bipolar electrodialysis. First, the main characteristics of the ABFB technology are described briefly to highlight its main advantages and drawbacks and define the most-competitive use-case scenarios in which the technology could be applied, as well as analyze the particular characteristics which must be considered in the process of designing the power converter to be used for the interface with the electrical network. As a result, based on the use-cases defined, the ESS main specifications are going to be identified, pointing out the best power converter configuration alternatives. Finally, an application example is presented, showing an installation in the electrical network of Pantelleria (Italy) where a real pilot-scale prototype has been installed.

ACS Style

Jesús Muñoz-Cruzado-Alba; Rossano Musca; Javier Ballestín-Fuertes; José Sanz-Osorio; David Rivas-Ascaso; Michael Jones; Angelo Catania; Emil Goosen. Power Grid Integration and Use-Case Study of Acid-Base Flow Battery Technology. Sustainability 2021, 13, 6089 .

AMA Style

Jesús Muñoz-Cruzado-Alba, Rossano Musca, Javier Ballestín-Fuertes, José Sanz-Osorio, David Rivas-Ascaso, Michael Jones, Angelo Catania, Emil Goosen. Power Grid Integration and Use-Case Study of Acid-Base Flow Battery Technology. Sustainability. 2021; 13 (11):6089.

Chicago/Turabian Style

Jesús Muñoz-Cruzado-Alba; Rossano Musca; Javier Ballestín-Fuertes; José Sanz-Osorio; David Rivas-Ascaso; Michael Jones; Angelo Catania; Emil Goosen. 2021. "Power Grid Integration and Use-Case Study of Acid-Base Flow Battery Technology." Sustainability 13, no. 11: 6089.

Journal article
Published: 07 March 2021 in Energies
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The occurrence of system separations in the power system of Continental Europe has been observed in recent decades as a critical event which might cause power imbalances higher than the reference incident specified per system design, representing an actual challenge for the stability and safe operation of the system. This work presents an analysis and simulations of the primary frequency control in the Continental Europe synchronous area in conditions of system separation. The adopted approach is based on fundamental aspects of the frequency-containment reserve process. The analysis takes an actual event into consideration, which determined the separation of the system in January 2021. The main purpose of the work is the development of specific models and simulations able to reproduce the actual split event. Due to specific arrangements discussed in detail, it is possible to obtain a substantial match between the simulations and the frequencies registered after the system split. The work also provides insight into the importance of the temporal sequence of power imbalances and defensive actions in the primary frequency control process. The models developed in the work are finally used to investigate the separation event under different operating conditions, such as missing defensive actions and low inertia scenarios.

ACS Style

Mariano Ippolito; Rossano Musca; Gaetano Zizzo. Analysis and Simulations of the Primary Frequency Control during a System Split in Continental Europe Power System. Energies 2021, 14, 1456 .

AMA Style

Mariano Ippolito, Rossano Musca, Gaetano Zizzo. Analysis and Simulations of the Primary Frequency Control during a System Split in Continental Europe Power System. Energies. 2021; 14 (5):1456.

Chicago/Turabian Style

Mariano Ippolito; Rossano Musca; Gaetano Zizzo. 2021. "Analysis and Simulations of the Primary Frequency Control during a System Split in Continental Europe Power System." Energies 14, no. 5: 1456.

Wind and solar workshop 2019
Published: 18 December 2020 in IET Renewable Power Generation
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This study investigates the effects of converter-interfaced generation integration on the dynamic response of the power system of Continental Europe. The system is analysed with a large-scale dynamic model of the entire synchronous area, considering different instantaneous integration percentages of converter-interfaced generation across the system. The study focuses on the reduction of the overall available kinetic energy and the impact on frequency dynamics and system oscillations. The dynamic model of the system originally provided by ENTSO-E is further developed according to a specific methodology, replacing a determined amount of synchronous generation and introducing a corresponding amount of converter-controlled current sources. The reference incident of a generation loss in Western Europe specified by ENTSO-E is considered in the analysis. The results of time-domain simulations and modal analysis show how the integration of non-synchronous generation affects the frequency dynamics of Western, Central and Eastern Europe, bringing to attention some relevant effects of the spatial distribution of different generation sources within an extensive system as the Continental Europe synchronous area.

ACS Style

Luigi Busarello; Rossano Musca. Impact of the high share of converter-interfaced generation on electromechanical oscillations in Continental Europe power system. IET Renewable Power Generation 2020, 14, 3918 -3926.

AMA Style

Luigi Busarello, Rossano Musca. Impact of the high share of converter-interfaced generation on electromechanical oscillations in Continental Europe power system. IET Renewable Power Generation. 2020; 14 (19):3918-3926.

Chicago/Turabian Style

Luigi Busarello; Rossano Musca. 2020. "Impact of the high share of converter-interfaced generation on electromechanical oscillations in Continental Europe power system." IET Renewable Power Generation 14, no. 19: 3918-3926.

Journal article
Published: 06 April 2020 in Journal of Cleaner Production
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Worldwide, the majority of small islands not connected to the main grid is still dependent on fossil fuels. From an economic and environmental point of view, this condition is no more sustainable given the high costs for electricity generation and the high level of pollutant emissions. Furthermore, the dependence on fossil fuel represents a risk for the security of the supply of several small developing Countries since they are obliged to import those resources from foreign Countries. The introduction of renewable energy sources in small islands represents a valid solution to solve these problems. In this context, the paper investigates the case of Lampedusa, a small Italian island whose electrical power system is currently totally supplied by diesel power plants. In the paper, the authors investigate the transition toward an economically and technically feasible generating system based on solar, wind and sea wave plants, to achieve specific targets of decarbonization. Commercial technologies are adopted for the exploitation of solar and wind sources, while sea wave plants are based on an innovative device, currently under development at the University of Palermo. A mathematical model is proposed to find the optimal energy mix that can satisfy a fixed share of annual electricity production from renewables, considering the Levelized Cost of Electricity. Finally, the proposed solution is analyzed in order to check the dynamic stability of the power system. The paper shows that, for replacing the 40% of the current electricity demand of Lampedusa, an optimal energy mix comprising 1509 kW from photovoltaic plants, 2100 kW from wind turbines and 640 kW from wave energy converters is needed. In this way, the actualized cost for the electricity production could be reduced to 0.260 €/kWh from the current value of 0.282 €/kWh.

ACS Style

Domenico Curto; Salvatore Favuzza; Vincenzo Franzitta; Rossano Musca; Milagros Amparo Navarro Navia; Gaetano Zizzo. Evaluation of the optimal renewable electricity mix for Lampedusa island: The adoption of a technical and economical methodology. Journal of Cleaner Production 2020, 263, 121404 .

AMA Style

Domenico Curto, Salvatore Favuzza, Vincenzo Franzitta, Rossano Musca, Milagros Amparo Navarro Navia, Gaetano Zizzo. Evaluation of the optimal renewable electricity mix for Lampedusa island: The adoption of a technical and economical methodology. Journal of Cleaner Production. 2020; 263 ():121404.

Chicago/Turabian Style

Domenico Curto; Salvatore Favuzza; Vincenzo Franzitta; Rossano Musca; Milagros Amparo Navarro Navia; Gaetano Zizzo. 2020. "Evaluation of the optimal renewable electricity mix for Lampedusa island: The adoption of a technical and economical methodology." Journal of Cleaner Production 263, no. : 121404.

Journal article
Published: 10 September 2019 in Energies
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The design of multi-carrier energy systems (MESs) has become increasingly important in the last decades, due to the need to move towards more efficient, flexible, and reliable power systems. In a MES, electricity, heating, cooling, water, and other resources interact at various levels, in order to get optimized operation. The aim of this study is to identify the optimal combination of components, their optimal sizes, and operating schedule allowing minimizing the annual cost for meeting the energy demand of Pantelleria, a Mediterranean island. Starting from the existing energy system (comprising diesel generators, desalination plant, freshwater storage, heat pumps, and domestic hot water storages) the installation of solar resources (photovoltaic and solar thermal) and electrical storage were considered. In this way, the optimal scheduling of storage units injections, water desalination operation, and domestic hot water production was deduced. An energy hub model was implemented using MATLAB to represent the problem. All equations in the model are linear functions, and variables are real or integer. Thus, a mixed integer linear programming algorithm was used for the solution of the optimization problem. Results prove that the method allows a strong reduction of operating costs of diesel generators also in the existing configuration.

ACS Style

Manfredi Crainz; Domenico Curto; Vincenzo Franzitta; Sonia Longo; Francesco Montana; Rossano Musca; Eleonora Riva Sanseverino; Enrico Telaretti; Riva Sanseverino. Flexibility Services to Minimize the Electricity Production from Fossil Fuels. A Case Study in a Mediterranean Small Island. Energies 2019, 12, 3492 .

AMA Style

Manfredi Crainz, Domenico Curto, Vincenzo Franzitta, Sonia Longo, Francesco Montana, Rossano Musca, Eleonora Riva Sanseverino, Enrico Telaretti, Riva Sanseverino. Flexibility Services to Minimize the Electricity Production from Fossil Fuels. A Case Study in a Mediterranean Small Island. Energies. 2019; 12 (18):3492.

Chicago/Turabian Style

Manfredi Crainz; Domenico Curto; Vincenzo Franzitta; Sonia Longo; Francesco Montana; Rossano Musca; Eleonora Riva Sanseverino; Enrico Telaretti; Riva Sanseverino. 2019. "Flexibility Services to Minimize the Electricity Production from Fossil Fuels. A Case Study in a Mediterranean Small Island." Energies 12, no. 18: 3492.