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Disturbance Rejection and Attitude Control of the Unmanned Firing System of the Mobile Vehicle  

Chang, Yu-Shin (SAMSUNG THALES Co.LTD. R&D Team, RADAR System Group)
Keh, Joong-Eup (Defense Agency for Technology and Quality Technology Planning Division)
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Abstract
Motion control of the system is a position control of motor. Motion control of an uncertain robot system is considered as one of the most important and fundamental research directions in the robotics. Some distinguished works using linear control, adaptive control, robust control strategies based on computed torque methodology have been reported. However, it is generally recognized within the control community that these strategies suffer from the following problems : the exact robot dynamics are needed and hard to implement, the adaptive control cannot guarantee the performance during the transient period for adaptation under the variation, the robust control algorithms such as the sliding mode control need information on the bounds of the possible uncertainty and disturbance. And it produces a large control input as well. In this dissertation, a motion control for the unmanned intelligent robot system using disturbance observer is studied. This system is affected with an impact vibration disturbance. This paper describes a stable motion control of the system with the consideration of external disturbance. To obtain the stable motion independently against the external disturbance, the disturbance rejection is strongly required. To address the above issue, this paper presents a Disturbance OBserver(DOB) control algorithm. The validity of the suggested DOB robust control scheme is confirmed by several computer simulation results. And the experiments with a motor system is performed to give the validity of applicability in the industrial field. This results make the easier implementation of the controller possible in the field.
Keywords
이동형 차량;무인사격시스템;외란관측기;외란제거;자세제어;
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Times Cited By KSCI : 1  (Citation Analysis)
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