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김환성(Hwan-Seong KIM),Tuong-Long NGUYEN,김영호(Young-Ho KIM) 한국항해항만학회 2003 한국항해항만학회 학술대회논문집 Vol.3 No.-
본 논문에서는 갠트리 크레인을 대상으로 트롤림 및 호이스트의 동기화 제어기 설계에 대해서 연구를 행한다. 컨테이너 선박의 움직임을 주기적인 외부의 외란으로 고려될 때, 이러한 외란에 대해서 트롤리 및 호이스트를 동기화 시켜 제어해야 할 필요성이 요구되고 있다. 본 논문에서는 일정한 패턴의 컨테이너 작업을 가정하였으며, 이 경우 트롤리 및 호이스트 작업에 대해서 동일한 패턴이 생성됨을 알 수 있다. 주어진 트롤리 및 호이스트 작업 패턴에 대해 반복 제어계를 이용하여 동기화를 행하였으며, 시뮬레이션을 통하여 그 유효성을 확인하였다. In this paper, we propose a new synchronized control method by using repetitive control algorithm. Generally, the working positíons of the trolley and hoist need to synchronize to the given reference paths for improving the production efficiency, in which the rolling of container vehicle can be effected to the working of gantry crane as an external disturbances. For synchronizing the given reference paths, the repetitive control algorithm is applied to constructing the gantry crane controller. By using simulation, we verify the efficiency of proposed synchronized control method.
Analysis of Galloping Amplitude for Conductors With Inter-phase Spacers
Hwan-Seong Kim,Tuong-Long Nguyen 대한전기학회 2006 Journal of Electrical Engineering & Technology Vol.1 No.1
The main purpose of this paper is to calculate the behaviors of inter-phase spacers to reduce the amplitude of galloping in conductors. In simulation, three phases and iced-single/two-bundles conductors with/without spacers are considered in viewpoint of standard cases. The implicit/explicit finite element methods are used to calculate the transient response with geometric nonlinear behavior. The ANSYS/LS-DYNA program is also applied. Calculation results can be used to predict the positions to insert the inter-phase spacers between conductors.
Analysis of Galloping Amplitude for Conductors With Inter-phase Spacers
Kim Hwan-Seong,Nguyen Tuong-Long The Korean Institute of Electrical Engineers 2006 Journal of Electrical Engineering & Technology Vol.1 No.1
The main purpose of this paper is to calculate the behaviors of inter-phase spacers to reduce the amplitude of galloping in conductors. In simulation, three phases and iced-single/two-bundles conductors with/without spacers are considered in viewpoint of standard cases. The implicit/explicit finite element methods are used to calculate the transient response with geometric nonlinear behavior. The ANSYS/LS-DYNA program is also applied. Calculation results can be used to predict the positions to insert the inter-phase spacers between conductors.