Decentralized adaptive stabilization in the presence of unknown backlash-like hysteresis
Automatica (Journal of IFAC)
Brief paper: Adaptive tracking of nonlinear systems with non-symmetric dead-zone input
Automatica (Journal of IFAC)
Automatica (Journal of IFAC)
Automatica (Journal of IFAC)
Paper: Decentralized adaptive control of interconnected systems with reduced-order models
Automatica (Journal of IFAC)
Automatica (Journal of IFAC)
Robust adaptive control of a class of nonlinear systems with unknown dead-zone
Automatica (Journal of IFAC)
Brief paper: Adaptive dynamic surface control for linear multivariable systems
Automatica (Journal of IFAC)
Hi-index | 22.15 |
The decentralized adaptive stabilization method is proposed for uncertain interconnected nonlinear systems with unknown non-symmetric dead-zone inputs. The class of systems considered in this paper consists of strict-feedback nonlinear subsystems with unknown non-symmetric dead-zone inputs which interact through their outputs. The unknown nonlinear interaction terms are assumed to be bounded by nonlinear functions with unknown parameters. For the simple controller design, the local controller for each subsystem is systematically derived based on the dynamic surface design technique, without constructing the dead-zone inverse and requiring the bound information of dead-zone parameters (slopes and break-points). All unknown parameters of interconnected nonlinear systems are compensated by the adaptive technique. From Lyapunov stability theorem, it is proved that all signals in the interconnected closed-loop system with decentralized adaptive controllers are semi-globally bounded. Simulation results for tripled inverted pendulums demonstrate the effectiveness of the proposed approach.