Management System Using Fuzzy Logic for Reference Governors in Solar Field Systems: A Case Study in Hospitals

This paper describes implementing models of a solar-assisted heat generation system for preheating water at the inlet of boilers in hospitals, which they used for both simulation and control. The following models are developed based on static and dynamic energy, mass balances, and step response methods (experimental tests). The main objective of the heat generation system is to supply the boilers in hospitals with hot water within a specific temperature range, using thermal storage tanks as input buffers to the system. The main achievement of this work was to add a hierarchical controller based on fuzzy logic that provides an adequate balance between complexity and performance. As a result, at startup, generator decision-making is very close to human oversight in the face of significant disturbances caused by passing clouds and large setpoint changes.