Digital Star

Technical Papers

Discover more about the energy issues through the technical papers written by our experts

Highligts

21 . 06 . 2015
Bruno Cova
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Maximum feasible penetration of non-programmable RES generation in power systems
​The large-scale development of renewable sources, with particular reference to wind, in the generation mix might introduce several problems for a secure management of the power system, due to a higher generation uncertainty, thus requiring careful investigations by the responsible for planning and the involved system operators. In this context, CESI has developed a thorough […]
15 . 06 . 2015
Alessandro Bertani
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Field measurements and frequency domain modeling of a 400 kV underground cable line
The length of XLPE-insulated underground cable lines in the European HV / EHV network is experiencing a fast growth due to the increasing number of submarine interconnections and suitability to be installed also in urban area with nil visual impact after installation. Use of cable stretches in combination with overhead lines has proven to be […]
16 . 04 . 2015
Stefano Malgarotti
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Optimizing the electrical design of the Colombia-Panamá interconnection
​The interconnection between Colombia and Panamá has been the object, since 2003, of a series of feasibility studies, cooperation agreements and financing approaches for a project which is intended to be a great contributor to the electrical markets integration of the Andean and Central America regions. Both countries have confirmed their interest in developing a […]
16 . 04 . 2015
The restoration strategies from neighbouring countries: simulation studies and actual tests experience
The paper describes the preparation and execution of Switzerland Italy re-energization test, managed on 2013, 6th January in order to continuously improve the restoration strategies to and ensure a constant assessment of ENTSO-E Operation Handbook (policy 5) procedures. The paper firstly summarizes the main results of the theoretical investigations on different neighbour backbones. Secondly the […]
16 . 04 . 2015
Bruno Cova
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Market integration and storage resources optimization to mitigate the risks of “over-generation” from non-programmable RES: the Italian prospective
​Italy has witnessed a very massive penetration of photovoltaic and wind generation in the recent years.The largest share of wind plants is connected to the transmission grid and the total power installed exceeded 8.5 GW at the end of 2013. Photovoltaic plants are generally connected to the distribution grid and at the end of year […]
16 . 04 . 2015
Uberto Vercellotti
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Safety issues in case of internal arc on HV cable terminations, bushings
Worldwide demand for new T&D networks will increase in the near future pushing the utilities to install a larger number of high voltage equipment like cable terminations, bushings and surge arresters. Meanwhile the attention to environmental and safety issues is generally increasing. The aim of this paper is to analyze the potential risks associated with […]