Reduction of high frequency zero sequence harmonics in parallel connected PV-inverters

Proceedings of the 2011-14th European Conference on Power Electronics and Applications (EPE 2011) // 15 September 2011 High power photovoltaic plants are usually constituted of the connection of different photovoltaic subfields, each of them with its interface transformer. Different solutions have been studied to improve the efficiency of the whole generation system. In particular, transformerless… Continua a leggere Reduction of high frequency zero sequence harmonics in parallel connected PV-inverters

Identification of the best power plant layout for large offshore wind farms connected via VSC-HVDC links

Energy Market (EEM), 2011 8th International Conference on the European, 2011, pp. 281-287. // 27 May 2011 The overall purpose of this paper is to find out the best choice in terms of generator technology for large offshore wind farms connected to the EHV network by means of VSC-HVDC transmission: besides the traditional benefits compared… Continua a leggere Identification of the best power plant layout for large offshore wind farms connected via VSC-HVDC links

Design and analysis of a Medium Voltage DC wind farm with a transformer-less wind turbine generator

XIX International Conference on Electrical Machines (ICEM 2010) // 25 October 2010 In recent years, the interest in offshore wind farms has been increased significantly. One of the reasons of this development is the less perceived environmental cost of an offshore wind farm with respect to an in-land one, especially for new installations where big… Continua a leggere Design and analysis of a Medium Voltage DC wind farm with a transformer-less wind turbine generator

Reduction of motor overvoltage fed by PWM AC drives using a universal model

Proceedings of the 2011-14th European Conference on Power Electronics and Applications (EPE 2011) // 15 September 2011 High power photovoltaic plants are usually constituted of the connection of different photovoltaic subfields, each of them with its interface transformer. Different solutions have been studied to improve the efficiency of the whole generation system. In particular, transformerless… Continua a leggere Reduction of motor overvoltage fed by PWM AC drives using a universal model

MVDC connection of offshore wind farms to the transmission system

2010 International Symposium on Power Electronics Electrical Drives Automation and Motion (SPEEDAM) // 09 August 2010 This paper describes an innovative Medium Voltage Direct Current electrical grid system (MVDC) for wind farms, based on transformer-less wind turbines, equipped with modular, multilevel converter (M2LC). A comparison between this MVDC system and a traditional MVAC one has… Continua a leggere MVDC connection of offshore wind farms to the transmission system

Design and application of a Linux Real Time board for distributed power generation

2009 35th Annual Conference of IEEE Industrial Electronics // 17 February 2010 The use of distributed energy resources is increasing and represents a valid answer to environmental problems and to the significant costs of more traditional energy sources. The need of developing distributed energy systems is strictly related to the need of flexible and scalable… Continua a leggere Design and application of a Linux Real Time board for distributed power generation

Design and development of a 7kW polymer electrolyte membrane fuel cell stack for UPS application

International Journal of Hydrogen Energy 35 (2010) 9983-9989 // 22 November 2009 This work presents the PEMFC stack design methodology developed at CNR-ITAE, in the frame of a collaboration with an industrial partner, Electro Power Systems (EPS), operating in the Uninterruptable Power Supply (UPS) market. A detailed description of the design procedure of a 7… Continua a leggere Design and development of a 7kW polymer electrolyte membrane fuel cell stack for UPS application

Hardware in the Loop (HIL) test bench for small-scale Distributed Generation systems

2008 IEEE International Symposium on Industrial Electronics // 18 November 2008 The test procedure of electrical drives for Distributed Generation (DG) systems generally requires the installation of dedicated prototypes on site: this is an expensive, time and power consuming procedure. In recent years, the availability of high performance calculation platforms has made possible to perform… Continua a leggere Hardware in the Loop (HIL) test bench for small-scale Distributed Generation systems

GreenShelter for telecom applications. A new generation of shelters for telecom applications integrating fuel cell electric backup and a new cooling approach

Intelec 2008, San Diego, USA // 14 – 18 September 2008 A new generation of shelter for telecom application has been designed and manufactured. The basic approach was to overcome the limit of the current technology regarding cooling needs and energy consumption as well as maintenance costs and backup autonomy. In this perspective the following… Continua a leggere GreenShelter for telecom applications. A new generation of shelters for telecom applications integrating fuel cell electric backup and a new cooling approach