한국산학기술학회논문지 (Journal of the Korea Academia-Industrial cooperation Society)

  • 제13권4호
  • /
  • Pages.1777-1783
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  • 2012
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  • 1975-4701(pISSN)
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  • 2288-4688(eISSN)
한국산학기술학회 (The Korea Academia-Industrial cooperation Society)
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24V-500W급 소형전동차용 DC모터 속도 콘트롤러 개발

Development of A DC Motor Controller for 24V-500W Small Electric Vehicle

  • 방준호 (전북대학교 IT응용시스템공학과) ;
  • 이우춘 (전북대학교 IT응용시스템공학과) ;
  • 유재영 (전북대학교 IT응용시스템공학과)
  • Bang, Jun-Ho (Dept. of IT Applied System Engineering, Chonbuk National University) ;
  • Lee, Woo-Choun (Dept. of IT Applied System Engineering, Chonbuk National University) ;
  • Yu, Jae-Young (Dept. of IT Applied System Engineering, Chonbuk National University)
  • 투고 : 2011.10.25
  • 심사 : 2012.04.12
  • 발행 : 2012.04.30
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 DC모터의 출력특성을 개선할 수 있는 새로운 구조의 DC모터 구동회로를 설계하였고 이 회로를 이용한 콘트롤러를 개발하였다. 설계된 구동 회로에 의하여 콘트롤러는 자체발진회로의 스위칭 신호를 갖는 트랜스포머를 이용하여 연속적으로 DC모터를 구동할 수 있다. 또한 최대속도시, 제어회로의 기준전압 값을 삼각파보다 높게 유지할 수 있고 모터 구동 FET를 항상 온 값을 가지도록 하여 최대출력을 얻을 수 있도록 한다. 제안된 구동회로를 활용하여 24V-500W급 DC모터속도 컨트롤러를 개발하였고 소형전동차를 제작하고 구동시험을 실시하였다. 구동테스트 및 특성 측정결과, 구동전류 12A로써 DC모터의 전진 및 후진 속도를 연속 가변 할 수 있음을 보였다. 그 밖에 과전류 감시기능, 모터과열 감시기능의 정상동작을 확인하였으며, 배터리 잔량이 20~100%까지 6단계로 표시할 수 있음을 확인하였다.

In this paper, a new motor driving circuit is designed to improve the output performance of DC motor, and a controller is developed with the designed circuit. By the designed driving circuit, a controller can continuously drive DC motors by a transformer which has switching signals of a self-generated circuit to operate it. And while the DC motor have a maximum velocity, the reference voltage can be maintained higher value than that of triangle voltage and it makes the DC motor driving transistor ON and maximum power. A 24V-500W DC motor controller is developed with the proposed motor driving circuit, and also a small electric car is made and the driving test of it is executed. The test results shows that it can continuously control go and back speed of motor with 12A driving current. And also, it is verified that the over current and heat detecting function is operating correctly and the rest value of the used battery can be displayed as 6 step from 20 to 100%.

키워드

참고문헌

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