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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 김은수
- 발행연도
- 2022
- 저작권
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이 논문의 연구 히스토리 (7)
2022
2021
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초록· 키워드
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In this thesis, a 3-phase single-stage AC-DC converter is proposed for the AGV(Automated Guided Vehicle) wireless charging system, and the main circuit operation characteristics are analyzed.
A 1-kW prototype was fabricated to demonstrate its applicability experimentally.
Under load conditions (from 75 W to 1 kW) through a phase-shifted modulation at a fixed switching frequency, it is found that the proposed converter can be controlled within a wide output voltage range of 39?54 VDC under the coupling (40?60 mm range of air gap) between the primary and secondary windings of a loosely coupled transformer.
Through the experimental results, it was shown that the proposed converter could operate robustly to changes in air gaps. In addition, the improvement in the THDi and the input power factor (PF), as well as the efficiency improvement (above 90 % at the rated load) by soft-switching were also verified.
A 1-kW prototype was fabricated to demonstrate its applicability experimentally.
Under load conditions (from 75 W to 1 kW) through a phase-shifted modulation at a fixed switching frequency, it is found that the proposed converter can be controlled within a wide output voltage range of 39?54 VDC under the coupling (40?60 mm range of air gap) between the primary and secondary windings of a loosely coupled transformer.
Through the experimental results, it was shown that the proposed converter could operate robustly to changes in air gaps. In addition, the improvement in the THDi and the input power factor (PF), as well as the efficiency improvement (above 90 % at the rated load) by soft-switching were also verified.
목차
제 1 장 서 론 .....................................................................................................1제 2 장 무선전력전송시스템을 위한 3상단일전력단 교류-직류 컨버터..............................................................82.1 3상 교류-직류 컨버터 주회로 동작모드..........................................112.2 3상 단일전력단 교류-직류 컨버터 입력역률보정회로동작특성 분석..................................................................................192.2.1 입력역률보정회로 교류-직류단 출력전압 VLink 유도...........................................................192.2.2 입력역률과 전고조파왜형률...............................................282.3 직류-직류단 직렬-직렬 보상회로 이득특성분석............................31제 3 장 실험 결과 .............................................................................................37제 4 장 결론 .......................................................................................................45참고 문헌 ...............................................................................................................46
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