171 research outputs found

### Errata and comments for "Numerical and analytical modeling of busbar systems"

This note covers two parts. The first one provides an errata to the paper "Numerical and analytical modeling of busbar systems". We mainly give the correction for three equations affected by a typographical mistake. Despite the corrections that we are providing with this note, we think that the implementation of these equations can be quite onerous. Hence, in the second part of this document we provide the download link to our implementation of the equations (developed in MATLAB environment). Moreover, to help in using these functions, we explain their behavior by means of some examples.Comment: 5 page

### Electrical impact of photovoltaic plant in distributed network

This paper presents the problem of the power penetration of photovoltaic (PV) systems in urban networks. After a qualitative problem description, two different environments for the PV systems have been analyzed: rural and urban networks. Concerning the rural network a single line has been simulated in order to evaluate the relation between the number of PV system installed along the line and the maximum PV power installable. In the second part of the paper the possible problems due to the power penetration have been examined concerning a clustered PV system that will be installed in the city of Torino (Italy) in ambit of an EU project

### Electrical Impact Of Photovoltaic Plant In Distributed Network

This paper presents the problem of power penetration of photovoltaic (PV) systems in urban networks. After a qualitative problem description, two different environments for PV systems have been analyzed: rural and urban networks. Concerning the rural network, a single line has been simulated in order to evaluate the relation between the number of PV systems installed along the line and the maximum PV power installable. In the second part of this paper, possible problems due to power penetration have been examined concerning a clustered PV system that will be installed in the city of Torino (Italy) within the ambit of the EU project called POLYCIT

### The high magnetic coupling passive loop: A steady-state and transient analysis of the thermal behavior

This paper deals with a new concept of technology for the mitigation of the magnetic field produced by underground power lines called "High Magnetic Coupling Passive Loop" (HMCPL). The working principle of this technique is the creation of a current with the same amplitude but opposite phase for each source conductor, in order to nullify the magnetic field in a specified region. Since the number of thermal sources in the shielding region is roughy doubled, the aim of the paper is the investigation of the thermal behavior of HMCPL directly buried in the ground, both in transient and in steady-state conditions. The study is carried out with simulations in order to verify any possible configurations of the shield. Results confirm that HMCPL is a safe technology which does not modify the thermal behavior of the power lin

### Energy networks in sustainable cities: towards a lull integration of renewable systems in urban area

The European Commission is supporting many projects intended to improve the use of renewable energy sources and a special attention has been devoted to the case of large scale urban areas. The project POLYCITY represents a significant demonstration of this energy policy which is applied to 3 cities: Barcelona, Stuttgart and Torino. The case of Torino appears of particular relevance because it is dedicated to the improvement of existing building and installations which is in our opinion the most frequent situation. In particular the most qualifying characteristic of Torino project is the installation of a new combined heat and power generator (CHP) coupled with the existing district heating and an absorption chiller in order to supply energy more efficiently in a district which include the Housing Authority of the Province of Torino (ATC) and 30 council buildings. The paper describes this project highlighting the use of renewable sources and the initial results. The preliminary assessment of our experiment will be discussed according to socio-economic, environmental and energetic indicators

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