Autori
Alessio Iovine, Gabriella Fiore, Elena De Santis, Maria Domenica Di Benedetto and Gilney Damm
Abstract
The concept of “smart cities” is gaining more and more attention due to the huge impact that they generate in terms of energy consumption and environmental issues. Thus, improving urban energy efficiency is considered as a key priority in recent years. Some of the challenges this new electricity grid wants to address are generation diversification, optimal deployment of expensive assets, demand response, energy conservation, and reduction of the industry’s overall carbon footprint. We need to redefine our electricity grid because the existing one is not efficient, robust and sized for the rise in demand for electrical power. In addition, it is not well fit to cope with the new challenges brought first by the introduction of large shares of renewable energy sources into the grid, and in a second step by the integration of electric vehicles.
This work is concerned with the evaluation of dynamics interaction when fulfilling the request of a desired amount of active and reactive power from the AC grid. Stability conditions are evaluated for the interconnected case and the adopted control strategy is shown to work both in islanded mode and in grid-connected mode: the AC grid is seen as a controllable load, while the load directly connected to the DC grid is uncontrolled.
