ROSINI A.

In the new energy scenario Renewable Energy Sources are playing a central role especially if energy islands are concerned. In particular, energy islands without synchronous generation, for example photovoltaic storage, are of major interest if one aims at a sustainable transition of these systems. In this Microgrid structure Grid-Forming and...

The primary regulation of photovoltaic (PV) systems is a current matter of research in the scientific community. In Grid-Feeding operating mode, the regulation aims to track the maximum power point in order to fully exploit the renewable energy sources and produce the amount of reactive power ordered by a hierarchically superior control level...

In the new energy scenario, energy production from power electronics has a central role in interfacing renewables and energy storage systems with an external grid. Despite the undoubted advantages of these generating units, some drawbacks can be highlighted and one of them is the response to a fault. This paper proposes a KPIs evaluation for...

This paper proposes an innovative control technique for the primary regulation of an islanded microgrid (MG) composed only by power converters and without any rotating electrical machine. The proposed method is based on the Model Predictive Control (MPC) technique and it is applied to an islanded portion of the Smart Polygeneration Microgrid...

Climate change, air pollution and energy costs impose new energy paradigms in order to meet the goals of a sustainable energy transition. Islanded Microgrids (MGs) are a very good structures to integrate Renewable Energy Sources (RES), as Photovoltaic (PV) units. PV plants are often connected in parallel with Storage (ST) units in order to...

Reactive power sharing is one of the main issues in the control and operation of an autonomous Microgrids (MGs), especially for MGs composed by power generation interfaced with the MG distribution by means of Power Electronic Converters (PEC). Among the various MG control techniques, the droop is the one that has been widely applied thanks to...

Advanced dynamic control strategies are presented to approach primary voltage control and reactive power sharing among Grid-Supporting inverters interfacing production units in AC islanded Microgrids (MG). After defining the MG structure and the power system model used in the analytical analysis, new methods are introduced and analyzed. Then, a...

Inverter based islanded MicroGrids (MGs) are very fascinating but challenging ways to integrate Distributed Energy Resources (DERs) in electric networks. Active and reactive power regulation is a major issue due to the necessity of optimally exploiting the sources characteristics and controlling voltage and frequency. Focusing the attention on...

The papers presents a new concept for controlling voltage and frequency in islanded microgrids composed by a Battery Energy Storage System (BESS) and PhotoVoltaic (PV) Units. The proposed approach is totally decentralized as each source is equipped with a purely local controller and no communication infrastructure is needed. Moreover, a...

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This paper examines Singapore Pulau Ubin microgrid to determine a daily operation management system. Since the grid is an islanded one it lacks the connection to the national network, which would ensure ancillary services such as voltage support or power factor correction. The developed tertiary control system offers a coordinated...