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RISS 인기검색어
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- 저자 : 손정기(J. K. Son) (검색결과 6 건)
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손정기(J. K. Son),권순재(S. J. Kwon),박한석(H. S. Park) 한국동력기계공학회 2003 동력시스템공학회지 Vol.7 No.1
The recent amount of container freight continuously has been increased, but the low efficiency of container crane causes jamming frequently in transportation and cargo handling at port. It is required that the working velocity and safety are improved by control of moving the trolley as quick as possible without large overshoot and any residual swing motion of container at the destination. In this paper, a LQ-Fuzzy controller for a container crane is proposed to accomplish an optimal design of improved control system for minimizing the swing motion at destination. In this scheme a mathematical model for the system is obtained in state space form. Finally, the effectiveness of the proposed controller is verified through computer simulation.
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손정기(J.K. Son),홍정표(J.P. Hong),권순재(S.J. Kwon) 한국동력기계공학회 2003 동력시스템공학회지 Vol.7 No.4
An LQ controller design method is proposed for effective anti-sway control of boom type crane in this paper. It is important for high productivity that the sway of a load is controlled as fast as possible when the trolley arrives to the destination with maximum velocity. To prove the effectiveness of the proposed LQ controller, simulations and experiments using the boom type crane as experimental device is carried out. Tracking performance for a step type reference and robustness for the change of working environment such as the change of load weight and parameters produced by a wire rope and disturbance by the wind are proved by the experiment. It will be examined that boom type crane can be applied to industrial fields through experiment in this paper.
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FLQ 제어를 이용한 컨테이너 크레인의 흔들림 제어기 설계
손정기(J.K. Son),권순재(S.J. Kwon) 한국동력기계공학회 2004 동력시스템공학회지 Vol.8 No.2
It is good method that moving velocity of hoist and trolley should be increased and the sway of container freight should be controlled efficiently at target position for high productivity in stevedore works with container crane. Fuzzy-LQ control technique that the sub-LQ controllers are combined by the fuzzy weighted average method after those controllers are designed is proposed. This technique has a characteristics that merits of LQ controller and fuzzy controller is combined. The LQ controller has good control performance in the special parameter range and the fuzzy controller has robust characteristics of parallel and logical control.
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홍정표(J.P. Hong),손정기(J.K. Son),원태현(T.H Won),권순재(S.J. Kwon),홍순일(S.I. Hong),김종달(J.D. Kim) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
Position controls are very important in semiconductor manufacturing devices, machine tools precision measuring instruments, etc. In this paper, a novel encoder of digital and analog hybrid type is proposed. It is shown that from this experiment a high-resolution angle measurement device can be designed by a low cost incremental encoder.
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