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Project MAT4-GRID 2017

Equipment and components for electricity grids

Power System Research


Giovanni Pirovano

The document presents a summary of the results achieved in research, of a highly experimental nature, aimed at the study, implementation and testing of new materials, capable of significantly improving the performance of components and equipment of the transmission network.

This document provides a summary of the main results of the activities in the annual period (PAR 2017) of the project "Equipment and components for electricity grids".

The report is preceded by an introductory chapter which illustrates the principle of national and international research programs, and the main objectives of the three-year project, followed by chapters with a description of the activities carried out on the two lines in which the project is structured. The general objective of the project is to carry out research, of a highly experimental nature, aimed at the study, implementation and experimentation of new materials, able to significantly improve the performance of components and equipment of the transmission network. The chapter shows the key results, the objectives and reasons for the research and development phases thereof, and a brief summary of the activity carried out in the previous PAR. Then follows a brief description of the activities in the work of research groups and standardization at national and international level.

The main activities performed in the period of PAR 2017 are relevant to:

• Study and characterization of surface treatments of aluminum and its alloys aimed at obtaining antiice properties of metallic conductors.

• Development of hydrophobic or hydrophilic coatings for glass insulators.

• Outdoor characterization of ice-phobic conductors, for distribution and transmission lines, at the WILD station and overhead power lines.

• Development and experimentation on overhead lines of passive devices able to allow the detection of the formation of sleeves on the line conductors.

• Modeling and measurements on new insulators and taken from the service in the presence of nonconductive defects between the fiberglass rod and the silicone housing

• Continuation and conclusion of the activity of defining test protocols and characterizing HTLS conductors with innovative cores in composite material (Kevlar cores and carbon fibers with trapezoidal elemental wires).

• Extension of the parametric comparison between SFCL and limiting reactors with the analysis of different application scenarios in public and private networks

• Design, implementation and experimental characterization of single-phase prototypes of SFCL with SAT 2G tapes based on newly developed YBCO. Development of numerical modeling on the new superconducting tapes starting from the experimental surveys.

• Development of simulation methods for the study of fluid-dynamic phenomena in cryostats of superconducting cables in innovative configurations.

The action of dissemination of knowledge has been practiced continuously through the publication of articles and conference presentations, whose details are reported in the concluding chapter.

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Pirovano Giovanni