Advanced control strategy for PQ improvement in PV systems without energy storage device

2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion // 29 July 2008 The use of distributed generating systems based on renewable energy sources has experienced a significant development in the last years. This paper focuses its attention on those based on photovoltaic systems. The intrinsic intermittent nature of this kind of renewable… Continua a leggere Advanced control strategy for PQ improvement in PV systems without energy storage device

A novel small-scale variable speed hydropower emulator using an inverter-controlled induction motor

2007 European Conference on Power Electronics and Applications // 04 January 2008 The test procedure of an electrical drive control generally requires connecting the control to the power converter, the motor and the load. This is an expensive, time and power consuming procedure especially when it is necessary to test new control algorithms or architectures… Continua a leggere A novel small-scale variable speed hydropower emulator using an inverter-controlled induction motor

Fuel Cell based Power System for Backup applications: Telecom Italia and other field test results

Intelec 2007, Rome, Italy // 30 September – 4 October 2007 Fuel cell power system are currently under test by several different Telecommunication operators worldwide for backup applications. Compared to traditional systems (battery based ups, genset), the PEM fuel cell based power systems have both benefits (higher efficiency and better environmental impact) and drawbacks (higher… Continua a leggere Fuel Cell based Power System for Backup applications: Telecom Italia and other field test results

The Kyoto Protocol and role of the European Union: regulation between tradable-pollution-rights and market policies

European Law and Policy Review, Giappichelli // 1 September 2007 Climate change is arguably one of the greatest challenges to the international community. The paper analyzes the United Nation Framework Convention on Climate Change within the context of the international policies as well as the more powerful measures adopted with the Kyoto Protocol in order… Continua a leggere The Kyoto Protocol and role of the European Union: regulation between tradable-pollution-rights and market policies

Universal digital controller for power quality and distributed generation systems

International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM 2006) // 05 July 2006 The paper introduces a complete study of a flexible digital control device for a very large number of low voltage power systems with functions of power quality (PQ) and/or distributed generation (DG). The novel aspect of the device is… Continua a leggere Universal digital controller for power quality and distributed generation systems