Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL

In this paper the development of a power quality monitoring system is proposed. The system is aimed to assess power quality and detect critical zones through the distribution system. The system integrates a hardware system and a software processing tool developed in four main stages. First, power quality disturbances are registered by means of PQ meters and the data is transmitted through a 3G wireless network. Then, the collected data is processed and filtered in an open source database. The third stage obtains some interesting statistical indices related to voltage sags, swells, flicker and voltage unbalance. The last stage displays those indices geo-referenced over power quality maps, allowing the identification of critical zones according to different criteria. The results can be analyzed using clustering tools to identify differentiated quality groups across the city. The proposed system is an open source tool useful to electricity utilities to analyze and manage large amount of data.