• Title/Summary/Keyword: 제함기

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A Motion Analysis Study of Casers for Fish Boxes using Computer Simulation (컴퓨터 시뮬레이션을 이용한 어체 상자 제함기 동작 분석에 관한 연구)

  • Jung, Sung-Heon;Jun, Chul-Woong;Sohn, Jeong-Hyun
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.18 no.4
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    • pp.56-61
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    • 2019
  • In this country, mackerel landing, sorting, and packing are mostly performed manually, which is time consuming and labor intensive. An unloading automation system saves time and labor by automating the landing, sorting, and packing processes. Casers are devices for manufacturing packing boxes for fish used by unloading automation systems. The caser design in this study is for mackerel packing boxes. This caser makes a packing box based on a press using the caser's slide crank. When the caser makes a packing box, the manufacturing sequence is determined by the caser's production guide and assisting rod. The caser design in this study is simulated using a multi-body dynamics program. The simulation is used to analyze the caser and to visualize the box-making sequence.

A Robust Current Control Technique with a Simple Time Delayed Estimator for a Permanent Magnet Synchronous Motor Drive (간단한 시간 지연 관측기를 이용한 영구자석 동기전동기 구동 강인 전류제어 기법)

  • 김경화;윤명중
    • The Transactions of the Korean Institute of Power Electronics
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    • v.5 no.2
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    • pp.140-148
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    • 2000
  • A robust current control technique with a simple time delayed estimator for a permanent magnet synchronous m motor (PMSM) drive is presented. Among the various CWTent control schemes for a voltage source inverter-fed P PMSM drive, the predictive control is known to give a superior performance. This control technique, however, r requires the full knowledge of machine parameters and operating conditions, and gives an unsatisfactory r response under the parameter mismatch between the motor and controller. To overcome such a limitation, the d disturbances caused by the parameter valiations will be estimated by using a" time delay contTol approach and u used for the computation of the reference voltages by a simple feedforwal"d control. The proposed control $ scheme is implemented on a PMSM using the software of DSP TlVIS:32OC:30 and the effectiveness is verified d through the comparative simulations and experiments.periments.

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