Development of an improved algorithm for optimal control of electrical modes for a ladle-furnace by using a digital twin

Within the framework of the article, a new algorithm for automatically switching of operating curves and on-load tap-changer stages in a ladle furnace is considered, depending on the level of the slag coefficient. A problem is formulated related to the complexity of determining the control parameter settings for various slag modes and blowing modes modes. As a solution to this problem, it is proposed to use a digital twin, which allows to calculate the most optimal combination of control settings for three phases. Upon completion of the calculation, the new setpoint values are transferred directly to the automatic control system for the electrical mode of the LF and are used for further operation of the unit. In conclusion, the results of the implementation of a new algorithm on the existing LF operating at one of the domestic metallurgical enterprises are presented.