전기기관차 모터구동 주접촉기 적용에 따른 전압변동 특성에 관한 연구 = A Study on the Characteristics of Voltage Variation by the Application of a Motor Driven Main Contactor for Electrical Locomotive

국문 초록 (Abstract)

국내 모든 전기철도차량 주변환장치에 입력 전원을 공급하는 주접촉기는 전자접촉기 적용으로 투입과 차단 작용이 1초 이내에 이루어지게 설계되었다.
그러나 8200호대 전기기관차 주접촉기(Q1·Q21))는 주변환장치 개발사에 의해 모터로 구동되는 일명 쌍안정접촉기(=주접촉기, Q1·Q2)를 적용하였다.
고압의 입력전원을 모터작동 접촉기 적용으로 접촉기 스퀀스 단계에 따라 직류단 전압변동은 어떻게 되는지, 그리고 전자접촉기 적용 시스템 차량과의 직류단 전압변동 비교·분석으로 모터구동 주접촉기를 적용한 이유에 대해 연구하였다.

목차 (Table of Contents)

• 목 차
• 목 차 ································································ⅰ
• 그림목차 ·······························································ⅲ
• 표 목 차 ······························································ⅴ
• 용어정리 ······························································ⅵ
• Ⅰ. 서론 ·····························································1
• 1. 연구배경 및 목적 ·················································1
• 2. 연구내용 및 방법 ··················································1
• 3. 선행연구사례 ······················································2
• Ⅱ. 이론적 고찰 ··················································5
• 1. 주변환 장치 ························································5
• 2. 컨버터 ······························································6
• 3. 인버터 ·····························································8
• 4. 입력단 접촉기 ·····················································11
• 5. DC 링크단 ·······················································12
• 6. 견인제어장치(TCU) ··············································15
• Ⅲ. 접촉기 전압변동 특성 분석 ···························16
• 1. 데이터 측정 ······················································16
• 2. 접촉기 유지보수 실태분석 ·······································20
• 3. K4·K5, Q1·Q2 동작에 따른 직류단 변동 분석················23
• 4. AK, K 동작에 따른 직류단 변동 분석 ·······················28
• 5. 전압변동 파형분석 ·············································30
• 6. 소결론 ··························································32
• Ⅳ. 결 론 ··························································34
• 1. 연구결론 ························································34
• 2. 향후연구 ························································36
• 참고문헌 ······························································37
• Abstract ·····························································38