Fuzzy annealing temperature controllers for bell-type electric furnaces

The problem of controlling the annealing temperature of transformer steel into bell-type electric furnaces observed. In order to stabilize the temperature the use of an adaptive fuzzy controller is proposed, which includes a multi-position (MPC) and a pulse-width (PWC) controllers. The principles of the rules´ formation for controllers suggested. The problem of parametric adaptation and the formation of the membership function solved. The advantages of the proposed controller compared to existing control system shown.