An intelligent Battery management system for home Microgrids

Abstract

This paper presents an intelligent battery management system (iBMS) used in a grid-connected Microgrid. The microgrid is composed by a PV generator, Battery system and a small residential group. This microgrid is located in a Caribbean zone which an average solar radiation greater than 1000 W/m2 but with large intermittency due to the movement of clouds. The iBMS considers a fuzzy controller whose rules are defined by the behavior of the people living in the houses, the intermittent energy available from the PV generator, the state of charge (SOC) of the battery and the contracted power from the electric mains. Also the iBMS considered a block of demand respond (DR) from a non-critical electric loads available in houses. The mail objectives of the iBMS is to supply electric power to houses using the available energy, not to generate disturbance to the electric mains and always to maintain the battery SOC in the possible maximum.