In this paper several fuzzy control methodologies are researched. Based on the fuzzy control theory, three types of aero engine fuzzy controllers were designed. First, a general fuzzy feedback control system was studied, then, an inverse fuzzy feedback controller was studied and the performance of it also studied. Finally, an equivalent fuzzy controller was designed and also its robustness performance was studied.The simulations for the three fuzzy controls systems have proved that all of them have good performance, especially the last two ones. Both trace the reference of input well and have good stability and robustness. |