Detection and Mitigation Methods of Attacks on Low-inertia Hybrid Microgrids: A Short Survey

Hybrid microgrids (MGs) are used to integrate renewable energy sources (RESs) into power grids and provide the capability to operate autonomously, meet environmental criteria, and serve the grid loads. As such, sophisticated control schemes are required to address these operational issues. Mentioned control strategies generally require up-to-date communication structures which make MGs more vulnerable to cyber intrusions. Given the increasing popularity of MGs among stakeholders and consumers, this paper studies cyber-physical security in hybrid MGs from the viewpoint of low-inertia hybrid MGs. In this survey, initially, we provide an overview of the terminology used in the context of hybrid microgrid security, e.g., existing communication networks, control strategies, cyber layers, and threats against renewable energy sources. Then, the gradient evolution of detection and mitigation methods, which can help in discovering proper future research directions, are studied.