L-2 Performance Index Robust Control of Arc Furnace Electrode Regulator System

Electric arc furnace electrode regulator system is a strong coupling and strong non-linear system. Nonlinear robust control problem lies in how to solve the HJI inequality, but there is no universal method to obtain the solution of HJI inequality. In this paper, it is given a new nonlinear robust controller design method which based on the exact state feedback linearization, linear robust control theory and L-2 interference suppression performance theory. Then it has made some simulations to prove the tracking control law and robust control law.