A Geno-Hydra Control System: Design and Tuning Hybrid Controller based on Hydra Control Structure by using Genetic Algorithms

Author(s):  
Nitiwat Sanornoi ◽  
Boonchana Purahong ◽  
Uthai Sritheerawirojana ◽  
Pitikhate Sooraksa
2007 ◽  
Vol 55 (639) ◽  
pp. 195-201
Author(s):  
Kenta Tsuda ◽  
Atsushi Okamoto ◽  
Masakatsu Chiba ◽  
Hiroshi Okubo ◽  
Hisao Azuma ◽  
...  

Author(s):  
Hungsun Son ◽  
Kok-Meng Lee

This paper presents the control system design for a particular form of variable-reluctance spherical motors, referred to here as a spherical wheel motor (SWM). Unlike most of the existing spherical motors where focuses have been on the control of the three-DOF angular displacement, the SWM offers a means to control the orientation of a continuously rotating shaft. Specifically, we demonstrate an effective method to decouple the open-loop (OL) control of the spin rate from that of the inclination, leading to a practical OL system combining a switching (spin-rate) controller and a model-based inclination controller. The OL system presented here provides the fundamental control structure for the SWM. To account for unmodeled external torques, we extend the design to allow feedback with a PD controller and a high-gain observer. The effectiveness of the controllers has been investigated by comparing their performance numerically under the influence of an unknown external torque.


2013 ◽  
Vol 718-720 ◽  
pp. 1554-1558
Author(s):  
Hong Wei Sha ◽  
Ren Liang Chen

to deal with the problems caused by the fixed stabilator, the movable stabilator and its installation angle control system have been researched in this paper. Base on the analysis of the influence of movable stabilator on helicopter longitudinal flying qualities, the control structure of the installation angle control system has been designed and its parameters are figured out with SQP method. The control system raised in this paper could be useful to instruct the movable stabilator installation angle control system design.


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