Fuzzy type-2 electrode position controls for an Electric Arc Furnace

This paper presents an approach to fuzzy type-2 Proportional-Integral-Derivative (PID) controls for the electrode positions in an Electric Arc Furnace (EAF). Due to the fluctuating power requirements and associated uncertainties of the EAF during operations, use of an accurate membership function is unreasonable. Therefore, fuzzy type-2 sets is applied for EAF controls. In this paper it is also proved that by fuzzy type-2 logic, the performance characteristics of the system will be improved using the proposed method.