The technological and economical development around the world has lead to an increase in the energy demand. It is well know that energy resources based on fossil fuels is very limited. In addition there is a huge social opposition to the electrical development, because the perception of the community to this development is associated with enviromental deterioration and social cost. This has lead to higher generation costs and thus high electricity prices for the consummers. With all this what is needed is a safe and efficient energy development, with reasonable prices, that take advantage of the renewable resources in a sustainable and non-polluting way. Here, the power converters play a relevant role, because they allow the interconnection between the generation and the consummers. The interest in this topic has been increases during the last years. The aim of this symposioum is to attract researchers in the field into discussion and interchange of experiences.