한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제17권8호
  • /
  • Pages.157-164
  • /
  • 2000
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

인덕턴스의 변화를 이용한 브러시리스 DC 모터의 초기 구동 알고리즘 개발 및 구현

Development of the Starting Algorithm of a Brushless DC Motor Using the Inductance Variation

  • 박재현 (한양대학교 정밀기계공학과) ;
  • 장정환 (한양대학교 정밀기계공학과) ;
  • 장건희 (한양대학교 정밀기계공학과)
  • Park, Jae-Hyun (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Chang, Jung-Hwan (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Jang, Gun-Hee (Dept. of Precision Mechanical Engineering, Hanyang University)
  • 발행 : 2000.08.01
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초록

This paper presents a method to detect a rotor position and to drive a BLDC motor from standstill to medium speed without any position sensor comparing the current responses due to the inductance variation in the rotor position. A rotor position at a standstill is identified by the current responses of six pulses injected to each phase of a motor. Once the motor stars up pulse train that is composed of long and short pulses is injected to the phase corresponding to produce the maximum torque and the next phase continuously. it provides not only the torque but also the information of the next commutation time effectively when the response of long and short pulses crosses each other after the same time delay. This method which is verified experimentally using a DSP can drive a BLDC motor to the medium speed smoothly without any rattling and time delay compared with the conventional sensorless algorithm.

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참고문헌

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