DISCRETE-TIME ADAPTIVE-CONTROL OF PLANTS WITH UNKNOWN OUTPUT DEAD-ZONES

被引：35

作者：

TAO, G ^{[1
]}

KOKOTOVIC, PV ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT ELECT & COMP ENGN,SANTA BARBARA,CA 93106

来源：

AUTOMATICA | 1995年 / 31卷 / 02期

关键词：

ADAPTIVE DEAD-ZONE INVERSE; ADAPTIVE CONTROL; CONTROL SYSTEM DESIGN; NONLINEAR SYSTEMS; STABILITY;

D O I：

10.1016/0005-1098(94)00087-Y

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

For discrete-time plants with unknown dead-zones at the output we propose a new controller structure with an adaptive dead-zone inverse. We consider two control problems; one when only the dead-zone is unknown, and the other when the whole plant is unknown. We allow the dead-zone to be with unequal slopes. The proposed controller structure results in a linear parametrization which is crucial for developing adaptive update laws. We prove the signal boundedness for the closed-loop system, and for a special case we establish asymptotic tracking. Simulation results show that our adaptive control schemes improve system performance.

引用

页码：287 / 291

页数：5