Francisco Ramos

Schneider Electric · R&D

The technological leap of smart technologies and the Internet of Things has advanced the conventional model of the electrical power and energy systems into a new digital era, widely known as the Smart Grid. The advent of Smart Grids provides multiple benefits, such as self-monitoring, self-healing and pervasive control. However, it also raises cruc...

The technological leap of smart technologies has brought the conventional electrical grid in a new digital era called Smart Grid (SG), providing multiple benefits, such as two-way communication, pervasive control and self-healing. However, this new reality generates significant cybersecurity risks due to the heterogeneous and insecure nature of SG....

The paper aims at describing a model-based approach to design automation logics for fault location and supply restoration in medium voltage distribution networks. The application of automation functions along medium voltage feeders and, in particular, the installation of protection devices in secondary substations mandates the design and the implem...

A new simulation library is developed on OMNeT++ to model faults in distribution systems. The proposed library makes it possible to calculate the status of lines and busbars from the point of view of a protection system, enabling the modeling of overcurrents, power outages and fault passage indicators. The library is applied to model a decentralize...

The Smart Grid is a complex and interconnected system where actions and events in one part of the system affect operations elsewhere. In order to perform a rigorous analysis a common and deterministic timing reference is required. This paper addresses this need, using as use case the Substation Automation System (SAS), a key element of the Smart Gr...

The installation of protection systems on the Medium Voltage (MV) network is probably the most pragmatic topic of the smart grid in those contexts where the regulation of distribution systems includes output-based incentives to Distribution System Operators (DSOs) related to the quality of service. One of the main obstacles to the diffusion of such...

Logic Selectivity immensely reduces both number of outages and their duration in the distribution network. IEC 61850 can be applied for standard implementing of Logic Selectivity in which Generic Object Oriented Substation Events (GOOSE) messages should be exchanged between intelligent field devices over the Internet. However, information security...

The use of protection functions on the Medium Voltage network are something far from a real deployment. Nevertheless - across Europe - some pilots where protection devices in secondary substations are coordinated with the one in primary substations are already running. Applications, like logic selectivity, are often studied in cooperation with the...