Category | Renewable Energy

Matching Circuit Topologies and Power Semiconductors for Energy Storage in Photovoltaic Systems

Posted on 08 September 2014

      Due to recent changes of regulations and standards, energy storage is expected to become an increasingly interesting addition for photovoltaic installations, especially for systems below 30kW. A variety of circuit topologies can be used for the battery charger stage. By Dr. Vladimir Scarpa, Pablo Cortes Lopez, Infineon Technologies AG These will require [...]

Moving to a New Direction

Posted on 07 August 2013

      The Photovoltaic market suffers in Europe but fares better in the MENA region What will the future bring for the solar industry? Definitely severe changes. Photovoltaic will be an important pillar of our future energy supply, but on the way to this, the industry has to face lots of challenges, especially in [...]

Inverter for Small Wind Power Stations

Posted on 23 July 2012

      Control strategies and inverter topologies for maximum efficiency Electrical energy generated from wind power plays an ever increasing role for our carbon free future. For small wind turbines, with output power of several kilo watts, different inverter topologies to control the wind turbine exist. This article explains the different control strategies and [...]

The Smart Grid Revolution

Posted on 17 July 2012

      GaN-based devices can overcome limitations In December, at the climate conference in Copenhagen, the world again committed itself to producing a sizeable part of its energy from renewable sources. And to meet those quotas, the renewable electricity generation will have to grow sharply in the coming years. By Jan Provoost, imec Science [...]

Right Technologies for Solar Converters

Posted on 17 July 2012

      There are a wide number of topologies used Energy produced from renewable sources is becoming an important contribution to the world’s total energy demand and will increase in the next decades. Solar photovoltaic technology represents one of the promising energy resources due to its low impact on the environment and its high [...]

Optimized High Power Converters for Renewable Energy Systems

Posted on 29 June 2012

      The renewable energy market is rebounding strongly from the global financial crisis. Projects that were previously delayed or mothballed have been restarted and many new projects are being realized. This upsurge has strongly reignited the demand for renewable energy system components throughout the supply chain, including wind power and PV converters. By [...]

Boosting the Efficiency of Photovoltaic Installations

Posted on 29 June 2012

      Converter efficiency of more than 97 percent was achieved TDK-EPC has developed a reference design for a miniaturized DC converter for photovoltaic installations jointly with STMicroelectronics. It allows the efficiency of these installations to be significantly increased. By Francesco Pulvirenti, Amedeo La Scala, Domenico Ragonese, STMicroelectronics and Davide Giavarini, Sales IC Reference [...]

Remote Sensing Utilising Alternative Energy

Posted on 29 June 2012

      Harvest energy from the surroundings Applications that require remote sensing often utilise alternative energy sources for power. This can be found in systems that monitor vibrations in bridges, the growth of trees in forests and seismic buoys. These energy sources usually are limited in the amount of power available so the design [...]

Symmetrical Boost Concept for Solar Applications up to 1000V

Posted on 01 March 2009

      Multiple input as a new option In a transformerless solar inverter application the symmetry of split supply DC voltages with ground is an important issue. The following concept shows the handling of both the input and the output asymmetry in an MPP booster circuit. By Michael Frisch, Vincotech GmbH, Biberger Str. 93, [...]

Alternative Efficiency

Posted on 01 June 2007

      By Arnold N. Alderman, Anagenesis, Inc.   In recent years two major efforts have consumed mega engineering hours of effort in the struggle to achieve improved performance. I speak of the efforts to achieve commercially viable alternative energy and the equal struggle to achieve improved efficiency both in conveyance and conversion. One [...]