This project presents a three-phase Active Power Conditioner to improve power quality in micro grids based on renewable energy. Three hysteresis controllers are used to six IGBT bridge. In a micro grid which is a weak electrical grid the disturban...

This project presents a three-phase Active Power Conditioner to improve power quality in micro grids based on renewable energy. Three hysteresis controllers are used to six IGBT bridge. In a micro grid which is a weak electrical grid the disturbances can be very important. The Active Power Conditioner (APC) presented in this project acts as an interface between renewable energy sources and the AC bus of micro grid. The improved control strategy used offer the Possibility to inject electrical energy from the renewable sources and on the other hand to improve the power quality in the same micro grid. This control strategy named Extended Indirect Control Strategy is capable to achieve better values for the following power quality indicators: THD (Total Harmonic Distortion), PF (Power Factor), current and voltage balancing.. Modern power system expert’s attentions have been diverted from the centralized power generation to the micro grid system due to availability of high potentials of renewable energy resources. Micro grid is designed so that a little dependency on national grid. In this paper a micro grid design guidelines, procedures and techniques have been presented where the renewable energy resources are available in abundant.