Categoria: Publications

Energies 2017, 10(2), 241 // 16 February 2017 “This paper presents a comparison of optimization methods applied to islanded micro-grids including renewable energy sources, diesel generators and battery energy storage systems. In particular, a comparative analysis between an optimization model based on linear programming and a model based on mixed integer programming has been carried… Continua a leggere Optimization Models for Islanded Micro-Grids: A Comparative Analysis between Linear Programming and Mixed Integer Programming

IEEE PES PowerTech 2017 // 2017 This paper presents a data analysis of an islanded diesel-PV-battery system, placed in Somalia. Operation of each generator is observed, concerning the most relevant performance indicators. Analysis is carried out during the first 11 months of operation, from November 2015 to September 2016. Investigations are divided into two periods,… Continua a leggere Performance Analysis of a hybrid micro-grid in Somalia

Energy Procedia, vol. 99, pp. 182-193 // November 2016 This paper presents the three-year PRESTO research project (2013-2015). PRESTO is a self-funded project developed by the Department of Energy of Politecnico di Milano in cooperation with FIAMM Storage, Elvi Energy and MCM Energy Lab (an Italian spin-off). Within the project, experimental tests and numerical simulations… Continua a leggere Distributed storage for provision of ancillary services to the main grid: project PRESTO

Design of reactive power regulator of synchronous generators by considering grid impedance angle for characteristic index objectives // 27 October 2016 Effects of low reactance to resistance ratio in distribution networks are widely studied but little work dealing with the tuning of voltage and reactive power regulators of small synchronous generators has been reported. This… Continua a leggere Design of reactive power regulator of synchronous generators by considering grid impedance angle for characteristic index objectives

16th International Conference on Environment and Electrical Engineering (EEEIC) // 7-10 June 2016 This work proposes an optimization method for the management of a Battery Energy Storage System (BESS) integrated in an islanded Micro-Grid, including Renewable Energy Systems (RESs) and generators burning fossil fuels. The optimized control of the battery State of Charge (SOC) allows… Continua a leggere Optimal Management Algorithm for Battery Energy Storage System Included in an Islanded Micro-Grid

PhD Thesis, Department of Energy Technology, Aalborg University, Aalborg Universitetsforlag, 2016 // 31 January 2016 The increasing share of Distributed Generators (DGs) poses concerns about network stability and their fair participation to the electricity market. Their aggregation in Virtual Power Plants, sometimes in combination with load prosumers, could represent an answer to these issues. Nevertheless… Continua a leggere Modelling, Control and Integration of Distributed Generators for Enhanced Ancillary Services

2015 17th European Conference on Power Electronics and Applications (EPE’15 ECCE-Europe) // 8-10 September 2015 This paper deals with some design aspects of the control loops in a droop-controlled VSI connected to other inverters of greater ratings or to a strong grid, which sets the frequency. The design of a damping resistor in series with… Continua a leggere Control loops design in a grid supporting mode inverter connected to a microgrid

2015 International Conference on Clean Electrical Power (ICCEP) // 16-18 June 2015 This paper is intended to introduce the project Energy4Growing that aims at studying and setting up a hybrid micro-grid to supply power to a school in rural Tanzania. It describes the results of the early project actions which concerned in: (i) analysing the… Continua a leggere Hybrid micro-grid experimental application in Tanzania

www.qualenergia.it // february 2015 The solution suggested by the authority to resolve problems is to penalise and shift part of the financial burden on to those who produce renewable energy power, which seems to be contrary to what the legislations state. Here follows Giuseppe Artizzu’s opinion on the proposal for reform of the electricity rates… Continua a leggere Electricity tariff reform – Discourages energy efficiency

Distributed Generation and Alternative Energy Journal, vol. 30, no.4, pp. 7-14 // 1 January 2015 We report the integration of a novel voltage regulation strategy in the inverter control algorithm for Dispersed Generation (DG) applications. The adoption of a decentralized voltage control based on local curves allows the voltage profile to be controlled at the… Continua a leggere Technical Strategies for Voltage Power Regulation in LV Distribution Networks