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