New challenges for photovoltaic grid-connected inverters


By Dr. Vicente Salas, Associate Professor, Universidad Carlos III de Madrid

As PV power generation adoption becomes more widely adopted globally, the grid-connected inverter market looks set to take its rightful role as a critically important element of solar installations. The grid-connected inverter market will deliver power quality and the stability of the electricity networks in order to ensure a stable and reliable grid operation. In order to keep up with these developments, network operators will release new grid codes to monitor the increased uptake, to which manufacturers must adhere. An additional obstacle for the inverter manufacturers is the wide range of requirements and norms that vary from country to country and, in many cases, even from utility to utility. This article presents a review of the new challenges facing grid-connected PV inverters in the light of these new developments.

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The eleventh edition of Photovoltaics International was published in February 2011 and features a special focus on PV modules from Fraunhofer CSP, SunPower and Heriot-Watt University. In addition, China Sunergy studies dark lines on mc-Si cells in Cell Processing and TU Freiburg looks at the challenges of the wire saw wafering process in Materials.

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