지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
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- 지도교수
- 백광렬
- 발행연도
- 2022
- 저작권
- 부산대학교 논문은 저작권에 의해 보호받습니다.
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- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
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초록· 키워드
오류제보하기
본 논문은 BLDC 모터 드라이버의 스위칭 소자의 고장 진단 방법을 제안한다. 대표적인 기존 진단 방법으로는 3상에 흐르는 상전류를 측정하는 방법이 있다. 본 논문에서는 BLDC 모터 직접 토크 제어 시 상전류 정보가 필요 없음을 식과 제어 시스템 회로를 통해 보이고, 불필요한 상전류 측정 시스템 없이 인버터로 공급되는 직류 전류만을 이용해 진단하는 방법을 제안한다. 제안된 알고리즘은 진단에 있어서 회로 디버깅이나 진단 시스템을 추가하기 위한 모터 인버터 회 로의 수정의 수고를 덜어주고 전원 회로의 전류 측정만으로 진단을 가능하게 한다. 제안된 시스템의 타당성을 확인하기 위해 본 연구에서는 스위칭 소자의 개방성 고장과 열화성 고장에 대한 실험을 진행하였다. IGBT 개방 및 병렬 저 항을 이용한 모터 드라이버의 개방성 고장 및 열화 동작을 실험을 통하여 시스 템의 효용성을 보였다. 두가지 고장에 대한 구동 및 전류 특성을 실험을 통해 보이고 문제점을 고찰하였다. 추가적으로 본 시스템의 진단 결과는 점수화 과 정을 통해 사용자가 실시간으로 고장 결과를 확인할 수 있도록 구성하였다.
목차
1. 서론 ································································································································· 12. 본론 ································································································································· 32.1 BLDC 전동기의 전압 방정식 및 출력 토크 ······················································· 32.2 BLDC 전동기의 제어 ······························································································ 72.3 인버터 회로 내 스위칭 소자 고상 시 구동 특성 ············································ 132.4 개방성 고장 시 구동 특성 ··················································································· 152.5 IGBT 열화 시 구동 특성 ······················································································ 192.6 고장 진단 시스템 ··································································································· 203. 실험 및 결과 ··············································································································· 253.1 시스템 구현 ············································································································ 253.2 정상 구동과 개방성 고장 구동 실험 결과 ························································ 283.3 IGBT 열화 고장 구동 실험 결과 ········································································ 334 결론 ································································································································ 37
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