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누설 전류 저감을 고려한 3레벨 태양광 발전 시스템의 스위칭 방법
- Alternative Title
- Lee June-Seok
- Author(s)
- 이준석
- Alternative Author(s)
- Lee June-Seok
- Advisor
- 이교범
- Department
- 일반대학원 전자공학과
- Publisher
- The Graduate School, Ajou University
- Publication Year
- 2013-02
- Language
- kor
- Alternative Abstract
- Transformerless photovoltaic (PV) systems are used because they have many advantages (weight, size, efficiency, etc.). However, transformerless PV systems suffer from leakage current. The present paper proposes a modulation technique to reduce leakage current in transformerless PV systems using a three-level inverter. The cause of the leakage current is analyzed. The proposed technique uses large vectors, medium vectors and only one zero vector, and switching occurs once in a switching period. The effectiveness of the proposed technique is verified by comparing its results with those of the space vector pulse width modulation (SVM) method. The results are obtained through simulation and experiment.
- Fulltext
- Appears in Collections:
- Graduate School of Ajou University > Department of Electronic Engineering > 3. Theses(Master)
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