Micro and nanogrid active power management under stand alone and grid connected operation

Abstract

This paper presents test evaluation and experimental results from the implementation of the approach for smart active power management in micro and nanogrids given in [1–4] under island and grid-connected mode. A new power electronic smart load controller for improving the power system stability and active power management is proposed and realized. The controller interaction is tested in a "power hardware in the loop" test performed at the Power System Stability Laboratory of TU-Sofia. The analysis of the results proves the functionality of the proposed concept and hardware realization. The approach offers cost effective solution to the main issues related to normal and stable micro and nanogrid operation.