Método de detección fallas para sistemas solares fotovoltaicos conectados a micro-redes en AC usando un observador por modo deslizante

Abstract

This research develops a fault detection method for solar photovoltaic (PV) systems connected to a Hybrid Micro Grid (HMG). The proposed method is based on a Sliding Mode Observer (SMO) model. This method allows the development of fault detection in nonlinear systems that are exposed to failures. The study allows to obtain the design parameters of the observer and of the fault detection system. The research was implemented in a benchmark HMG with normal operation and with the incorporation of faults in the primary control of PVs for both current and voltage. The results obtained were simulated and compared before different fault scenarios by observing the dynamic outputs of the system (V and I) being the base case the normal operation, these scenarios were simulated using the Matlab/Simulink software package, thus validating the fault detection method.