Control System Design of a Virtual Microgrid for Tishreen University Hospital Using a Distributed Control Strategy Based on Fuzzy Logic Controller
Keywords:
Microgrid (MG), Energy Management System (EMS), Distributed Control, Fuzzy Logic Controller (FLC), Distributed Energy Resources (DERs), Distributed Generation (DG), Multi-Agent System (MAS), Solar PV system.Abstract
Hospitals are among the most important public facilities that must be ready for any emergency or emerging situation. Recent events have shown that power outages do not distinguish between public facilities, which exposes hospitals and their patients to great danger. At the same time, hospitals consume as 2.5 times more energy than similar sized buildings. Therefore, it was optimal to resort to renewable energy sources and advanced technologies, including microgrids, to secure these special requirements for hospitals.
Our research proposes the design of a control system based on a Fuzzy Logic theory for distributed control of a virtual microgrid for Tishreen University Hospital in Lattakia city. To verify the validity and effectiveness of the proposed control system, a microgrid connected to the main network (an infinite network) containing several distributed generators (photovoltaic - diesel) has been modeled using the MATLAB modeling and simulation software. The modeling and simulation result we have obtained showed the effectiveness of the proposed control system in improving the energy management system (maintaining voltage and frequency, coordinating the connection and disconnection of generators, the active power sharing, etc.), in addition, to distributed generators overload protection from. These results also showed the strength, durability and superiority of this type of controller (FLC). This research can be developed through modeling energy storage sources and studying its role in achieving the power balance between energy generation sources and loads, especially at night work situation, in addition to conducting an economic study to show the savings in energy costs.
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