Design of an innovative Hybrid Fuzzy Controller for laser surface treatments

This article introduces an innovative fuzzy logic control system for laser surface treatments, which allows to increase significantly the uniformity and final quality of the process, reducing the rejection rate and increasing the productivity and efficiency of the treatment. The proposed hybrid structure combines a PD fuzzy logic controller, with a pure integral action, both fully decoupled, improving considerably the performances of the process with a reasonable design cost, since the system nonlinearities are fully compensated by the fuzzy logic component of the controller, while the integral action contributes to eliminate the steady state error.