Intelligent compound control of direct current electric arc furnace

摘要

Due to steelmaking process of the Ultra High Power Direct Current Electric Arc Furnace (IHP DC EAF) is a complex process with physicochemical reactions, there exist highly nonlinearity, uncertainty, time-variant and seriously interconnected (i.e. some of the variables may not be linearly independent) etc. It is imposible to establish a precise model for the steelmaking of the UHP DC EAF. According to the concrete practice of the steelmaking process, a intelligent compound control strategy is presented based on the steelmaking process of UHP DC EAF in this paper. This method was successfully used in the steelmaking process of the UHP DC EAF in a factory.