원문정보
초록
영어
This paper intends to design a high-efficient grid connected three-phase three-level T-type photovoltaic inverter system which is operated with conjunction with grid. Different from the two-level topology mainly used previous, switch elements are increased by 6 pieces, it has the advantages such as the efficiency of the inverter, less stress in the switching elements, and less harmonic component in the output current. This paper will suggest the boost convert always supplying constant DC voltage for a three-phase three-level T-type photovoltaic inverter, and also presents the stability and excellence of the 3 level boost converter through experiments. Also, it offers the stable and high-efficient MPPT algorism and through solar irradiation change experiment and MPPT efficiency assessment, the excellence and efficacy of three-level T-type inverter was verified from experiments.
목차
1. Introduction
2. Grid Connected Three-Phase Three-level T-Type Photovoltaic Inverter
2.1. Three-Level Boost Converter
2.2. MPPT(Maximum Power Point Tracking)
2.3. Three-Phase T-Type PV Inverter
2.4. PLL (Phase Locked Loop)
3. Experimental Results and Discussion
3.1. Three Level Boost Converter
3.2. MPPT (Maximum Power Point Tracking)
3.3. Three-Phase Three-Level T-Type Inverter
4. Conclusion
References