Industrial Automatic Control Systems and Controllers Annotation << Back Air Pre-Cooling System I.A. Ovchinnikov, L.I. Medvedeva This article studies the air pre-cooling system (SPOV) from the point of view of the mathematical foundations of control theory. The transfer function of the control object is calculated. The main tasks of optimizing the control system are formed and solved, a mathematical model of the control object is compiled. An analysis of the quality of object management was made. The calculation and selection of the optimal tuning coeffi cients of the PID controller was carried out, and the simulation of the control process was carried out. Keywords: compressor, heat exchanger, automation systems, pressure switches, refrigerant, thermostats. DOI: 10.25791/asu.8.2023.1450 Pp. 03-08.