15th Triennial World Congress of the International Federation of Automatic Control
  Barcelona, 21–26 July 2002 
SPEED ESTIMATOR WITH ADAPTATIVE FUZZY FILTER
J. Català i López, L. Romeral Martínez, A. Arias Pujol, E. Aldabas
Universitat Politècnica de Catalunya. Departament d’Enginyeria Electrònica
E.T.S.E.I.T., Colom 11, 08222 Terrassa, Spain
Campus de Terrassa
Phone:34 93 739 8699, Fax: 34 93 739 8016
e-mail:catala@eel.upc.es

A novel sensor-less system for induction motors is designed. This novel design is based on an adaptative fuzzy system, which is obtained by mixing open-loop estimator response with steady-state estimator. This open-loop estimator is improved by means of using an adaptative fuzzy controlled filter that selects the optimised cut frequency. The results validate the entire work in not only transient and steady state but also in the start-up.
Keywords: Fuzzy, filter, speed, control, motor, estimator, observer
Session slot T-Mo-M04: Fuzzy control theory/Area code 3e : Fuzzy and Neural Systems