| Titre : | A combined hard and soft variable-structure control scheme for a class of nonlinear systems |
| Auteurs : | Su, Juhng-Perng, Auteur ; Lee, Ting-En, Auteur ; Yu, Ker-Wei, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | IEEE transactions on industrial electronics (Vol. 56 N° 9, Septembre 2009) |
| Article en page(s) : | pp. 3305-3313 |
| Langues : | Anglais |
| Index. décimale : | 621 (Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie) |
| Tags : | Structure variable Commande dure douce Système non-linéaire |
| Résumé : | This paper presents a novel variable-structure-based control scheme for nonlinear systems. First, a hard variable-structure control is constructed for achieving a uniform ultimate boundedness control. Then, a soft variable-structure control using fuzzy logic is incorporated to help improve dynamic responses when trajectories enter into the ultimate bound. For practical consideration, we added a genetic-algorithm-based alpha-beta filter in front of the fuzzy controller to suppress noise and obtain smooth input signals. For comparison purposes, an inverted pendulum system was first used as a simulated example to demonstrate the effectiveness of the design. Then, the performance of the control scheme was practically tested with an experimental PC-based magnetic levitation system. The simulation and experimental results strongly suggest that the newly proposed control scheme is encouraging for practical applications. |
| Note de contenu : | Génie électrique |
| DEWEY : | 621 |
| ISSN : | 0278-0046 |
| En ligne : | http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5200775&arnumber=5067307&count=54&index=4 |
