Mitigación de fluctuaciones de tensión en microrredes eléctricas aisladas que integran agentes de generación renovable basados en inversores con sistemas de almacenamiento de energía

Abstract

Isolated electrical microgrids powered by renewable sources, such as wind and solar energy, are affected by voltage fluctuations caused by the intermittent nature of their energy source. These fluctuations must be controlled to maximize generation and ensure the stability of the isolated system. This research implements different strategies to mitigate voltage fluctuations in a model previously created based on the Micro-Red Laboratory at the University of Cuenca. These strategies are based on linear and nonlinear methods associated with reactive power injection/absorption at the common node, using energy storage systems. To this end, typical scenarios unfavorable to stability are implemented, thus evaluating the response of the strate- gies to the aforementioned fluctuations. The results allow us to determine that the piecewise linear-elliptic droop method stabilizes the voltage more quickly and with less variance.