Search results for "SISTEMI"
showing 6 items of 2026 documents
La nuova tutela penale europea dei sistemi di informazione. Una prima lettura della nuova direttiva 2013/40/UE del Parlamento europeo e del Consiglio
2013
Urban Landscapes and Resilience. Exploring an adaptive design perspective
2017
Il concetto di resilienza in pianificazione è emerso in tempi recenti come un mezzo potente per sostenere la ricerca e l'innovazione sua nella teoria che nella pratica. Partendo da una definizione delle città come sistemi adattivi complessi, organismi viventi in un contesto di non-equilibrio e spazi di intensa interazione e interdipendenza uomo-natura, il contributo intende esplorare il ruolo dei servizi ecosistemici nella costruzione della resilienza urbana. Il cambiamento globale e l'incertezza richiedono un approccio strategico verso la resilienza urbana, attraverso l'adaptive design. Mentre una visione basata sullo stato di equilibrio tende a guardare alla forma urbana ideale, riconosce…
Damping Provision by Different Virtual Synchronous Machine Schemes
2020
The adoption of virtual synchronous machine (VSM) schemes for the control of power converters is gaining more and more attention both in academia and industry. The VSM control strategies fall into the category of grid-forming converter controls, and they are intended for a range of different applications, providing specific services and different kinds of support to the grid. The paper investigates the possibility of damping provision to the system by VSM power converters. Different schemes are considered and compared, showing the opportunity of the investigated solutions through combined modal and time domain analyses. A specific modification of the power synchronization loop is recognized…
Sensitivity Analysis and Frequency Dynamics of Grid-Connected Converters with Virtual Inertia
2021
For the participation in the frequency control of the system, power converters can be controlled with different strategies and methods, sharing the common concept of virtual inertia capability. In this work, a sensitivity analysis of two main categories of converter controls with virtual inertia is presented. The considered schemes are a grid-following current vector control with additional virtual inertia block and a grid-forming control scheme based on virtual synchronous machine concept. A proper basis for the comparison is first assessed providing an analytical correlation between the control parameters of the two schemes. For the two control strategies, the sensitivity analysis of the …