http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Bingjie Wu (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Improved SVPWM modulation method for three‑phase dual‑input dual‑buck inverters
Yongshuai Wang,Hongjuan Ge,Hang Yin,Bingjie Wu,Fan Yang 전력전자학회 2023 JOURNAL OF POWER ELECTRONICS Vol.23 No.5
The traditional modulation method for three-phase dual-input dual-buck inverters is level-shifted sine pulse width modulation. The disadvantage of this method is that the dc voltage utilization ratio is low and the software fault tolerance is difficult to realize. To solve these problems, an improved SVPWM suitable for this inverter is proposed in this paper. By analyzing the switch modes and bridge arm midpoint level of this inverter, 27 voltage vectors are obtained. According to the obtained long vector cluster, medium vector cluster, and short vector cluster, six modulation sectors are obtained, and each modulation sector has four modulation regions. When the voltage of the inverter low-voltage dc source changes, the associated vector changes as well. How the modulation region changes when the associated vector changes is analyzed. The action time of each vector in each modulation region is deduced. In addition, the action order of each vector involved in vector synthesis is optimized. A 2 kW prototype was built to carry out experimental research. Experimental results show that this modulation method improves the dc voltage utilization ratio, reduces the loss, and improves the efficiency of the inverter.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
