Fault Diagnosis in Microgrids with Integration of Solar Photovoltaic Systems:A Review
Saeedreza Jadidi, Hamed Badihi, Youmin Zhang
Abstract
Microgrids are essential components to help create the future electric grid which features a significant penetration of renewable and clean energy resources. However, a critical challenge in the protection of microgrids is the fault detection and diagnosis process, particularly in the presence of high uncertainties and varying topologies of microgrids. Faults in microgrids can cause instabilities, inefficient power generation, and other losses. Therefore, not only does it matter to understand various fault/failure modes and their root causes and effects, but it is also essential to develop real-time automated diagnosis tools to capture early signatures of fault evolution and enable proper mitigating actions. Given the significance of this issue, the present paper starts with a review of different failure modes occurring in various components of grid-connected photovoltaic systems, before offering a deeper review of the state of the art of fault diagnosis techniques specifically applied to solar photovoltaic systems in microgrids.