Coordinate transformation learning of hand position feedback controller with time delay

2001 ◽  
Vol 38-40 ◽  
pp. 1503-1509 ◽  
Author(s):  
Eimei Oyama ◽  
Karl F MacDorman ◽  
Arvin Agah ◽  
Taro Maeda ◽  
Susumu Tachi
2021 ◽  
Vol 5 (4) ◽  
pp. 257
Author(s):  
Changjin Xu ◽  
Maoxin Liao ◽  
Peiluan Li ◽  
Lingyun Yao ◽  
Qiwen Qin ◽  
...  

In this study, we propose a novel fractional-order Jerk system. Experiments show that, under some suitable parameters, the fractional-order Jerk system displays a chaotic phenomenon. In order to suppress the chaotic behavior of the fractional-order Jerk system, we design two control strategies. Firstly, we design an appropriate time delay feedback controller to suppress the chaos of the fractional-order Jerk system. The delay-independent stability and bifurcation conditions are established. Secondly, we design a suitable mixed controller, which includes a time delay feedback controller and a fractional-order PDσ controller, to eliminate the chaos of the fractional-order Jerk system. The sufficient condition ensuring the stability and the creation of Hopf bifurcation for the fractional-order controlled Jerk system is derived. Finally, computer simulations are executed to verify the feasibility of the designed controllers. The derived results of this study are absolutely new and possess potential application value in controlling chaos in physics. Moreover, the research approach also enriches the chaos control theory of fractional-order dynamical system.


2014 ◽  
Vol 670-671 ◽  
pp. 1358-1361
Author(s):  
Hong Yang ◽  
Huan Huan Lü ◽  
Le Zhang

For a class of T-S fuzzy time-delay systems, the problem of designing a static output feedback controller is considered via the parallel distributed compensation (PDC) approach. Namely, when one controller can not assure the stability of system, a controller switching strategy in certain set of controllers may stabilize the system. Moreover the adoption of this strategy often improves the performance of system even in the case that a single controller can stabilize the system. By defining multiple Lyapunov functions, the sufficient condition for the existence of the static out put feedback controller is presented in terms of linear matrix inequality (LMI), which guarantees the stability of the close-loop system for the switching cases. The simulation results demonstrate the effectiveness of the proposed method.


IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 1967-1973 ◽  
Author(s):  
Wei Ma ◽  
Rui Zhang ◽  
Lei Wang ◽  
Jiahong Li ◽  
Zhiming Dong ◽  
...  

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