450톤 크레인용 110 kW 유도전동기 벡터 드라이버 개발에 관한 연구

Development of 110 kW AC Motor Vector Drive for 450 Ton Gantry Crane

  • Kim, Young-Seok (Changwon R & D Institute, Samsung Heavy Industries) ;
  • Kim, Seong-Yoon (Changwon R & D Institute, Samsung Heavy Industries) ;
  • Lee, Hae-Keu (Changwon R & D Institute, Samsung Heavy Industries) ;
  • Ahn, Byung-Ku (Changwon R & D Institute, Samsung Heavy Industries) ;
  • Kim, Sung-Jun (Dept. of Electrical Engineering, Seoul National University) ;
  • Seok, Jul-Ki (Dept. of Electrical Engineering, Seoul National University) ;
  • Sul, Seung-Ki (Dept. of Electrical Engineering, Seoul National University)
  • 발행 : 1995.11.18

초록

In crane drives, DC motor has been most widely used due to simple control characteristic and favorable transient behavior. Nowadays, however, the squirrel cage induction motor is known as an attractive candidate due to elimination of all sliding electrical contacts, resulting in an exceedingly simple and rugged construction. Especially, in hoist application, the smooth torque control and four quadrant operation are essential. In this paper, an operation of dual inverters with common DC bus fed by vector controlled induction motor is described. Single DSP is employed as a main processor to control dual inverters and communicates each input/output signal with PLC. As well as giving a detailed expression, full simulation and experimental results are presented.

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