A direct MRAC based multivariable multiple-model switching control scheme

Automatica ◽  
2017 ◽  
Vol 84 ◽  
pp. 190-198 ◽  
Author(s):  
Chang Tan ◽  
Gang Tao ◽  
Ruiyun Qi ◽  
Hui Yang
2020 ◽  
Vol 53 (2) ◽  
pp. 6428-6433
Author(s):  
Zongyi Guo ◽  
David Henry ◽  
Jianguo Guo ◽  
Zheng Wang ◽  
Jérôme Cieslak ◽  
...  

Author(s):  
Bo Zhu ◽  
Kai-Yuan Cai

In the paper, we show that for a class of linear plants, although the common linear control can be used to stabilize them, the step responses of the resulting closed-loop systems must have overshoot; however, a simple switching between them may avoid the overshoot. This indicates that switching control may overcome the performance limitation of linear feedback control in the overshoot-avoidance respect. A simple switching control scheme with such a quality is exploited and the conditions for its existence are presented. In the scheme, two common controllers are needed and they are only required to guarantee no overshoot on the time intervals [0, ts) and [ts, ∞), respectively, where ts denotes the switching time. For actual implementation, a state-dependent version of the switching control law is developed. Two examples are presented to show its effectiveness.


2016 ◽  
Vol 65 (6) ◽  
pp. 4480-4492 ◽  
Author(s):  
Shengbo Eben Li ◽  
Feng Gao ◽  
Dongpu Cao ◽  
Keqiang Li

Author(s):  
Mehmet Akar

This paper presents a multiple model/controller scheme for robust tracking of a class of nonlinear systems in the presence of large plant uncertainties and disturbance. Each model is associated with a sliding mode controller, and a switching logic is designed to pick the model that best approximates the plant at each instant. Theoretically, it is shown that the proposed control scheme achieves perfect tracking despite the existence of disturbance, whereas simulation results verify the improvement in the transient performance.


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