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Smart Grids deployment is growing around the world. The expansion of the existing Smart Grid network infrastructure in order to connect new electrical substations (or end-users) may be impaired by difficult cable deployment. For this reason, recently, wireless communication links have also been used. This paper deals with the deployment, and the first characterization, of an IEEE 802.11ac connection...
The growth of Smart Grids based on the IEC61850 standard makes the communication infrastructure a key factor of a successful application. Due to the distributed nature of the Smart Grid, the evaluation of the main performance indicators requires specialized distributed measurement system with dozens of measuring probes. Clearly, the scalability of the measurement system is tied to the cost of the...
In modern distribution systems, the wide presence of Distributed Energy Resources (DERs) (e.g. intermittent and non-programmable renewable sources, such as photovoltaic power plants and micro wind turbines), is going to cause increasing problems in the traditional management of the distribution grid. Recently, the use of Distributed Energy Storage Systems (DESSs) has been proposed to limit the impact...
The rise of Smart Grids based on IEC61850 standard requires specialized measurement systems in order to characterize the main performance parameters. In this paper, a new distributed measurement system for the estimation of IEC61850 Transfer Time over Smart Grid communication infrastructure is introduced. The structure of a possible implementation, based on specialized sampling devices coordinated...
The micro grid is a cluster of electricity generators, energy storage systems, and loads that can operate connected, as well as disconnected, from the distribution grid. In this paper the time related characteristics of Cyber Physical Systems (CPCs) to be used for (IEC 61850-based) automation of micro grids are investigated. Specific constrains are taken into account as, for instance: the use of heterogeneous...
Micro grids are localized groups of electricity generators, energy storage systems, and loads with the possibility of operating both connected and disconnected from the distribution grid. This paper is focused on the automation of micro grids using heterogeneous communication networks; the new approach takes into account the need of reusing existing wired and wireless technologies and assets when...
The International Electrotechnical Commission (IEC) 61850 standard is widely used in substation automation system (SAS), even if some aspects related to the network-based time synchronization are still under investigation. The latest version of the IEC 61850 standard introduces IEEE 1588 Precision Time Protocol (PTP) for distributing time in the station and process buses, in addition to the previously...
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