20.500.12556/RUL-172523 Model predictive control of the refining stage in an electric arc furnace using soft sensors In this paper, a novel Model Predictive Control (MPC) based on soft sensors is developed to optimize the refining stage in Electric Arc Furnaces (EAFs). Given the significant energy consumption and environmental impact associated with EAF operations, there is a critical need for more precise and efficient control strategies. The proposed MPC approach utilizes real-time soft sensors to accurately determine critical parameters, i.e., bath temperature and dissolved oxygen content. By replacing operators’ subjective judgments with continuous, data-driven feedback, this methodology facilitates precise control adjustments throughout the refining process. The implementation of this MPC has shown that the duration of the refining stage has been reduced by approximately 80 seconds, which directly translates into shorter tap-to-tap times, lower energy consumption and improved operational efficiency. In addition, consistently maintaining optimal bath conditions ensures improved steel quality, greater reliability, and higher overall productivity of the EAF process. model predictive control bath temperature electric arc furnace dissolved oxygen prediktivno vodenje temperatura kopeli elektroobločna peč raztopljen kisik true false true Angleški jezik Slovenski jezik Članek v reviji 2025-09-08 10:18:16 2025-09-08 10:18:21 2025-10-15 03:38:47 0000-00-00 00:00:00 2025 0 0 8 str. 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.365.2:681.5 1742-6596 10.1088/1742-6596/3050/1/012010 246338563 246334211 Blazic_2025_J._Phys.__Conf._Ser._3050_012010.pdf Blazic_2025_J._Phys.__Conf._Ser._3050_012010.pdf 1 7AACE2E478E5B5901A217D73E79A4688 33a1b776fb2017f17cdf32a141afd78ec0a34159e1e6b822ef48460590b46023 f1e3c419-8c8c-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=216353 https://iopscience.iop.org/article/10.1088/1742-6596/3050/1/012010 1 3bc809cd-8c8c-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=216352 Fakulteta za elektrotehniko 0 0 0