期刊
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
卷 9, 期 2, 页码 2027-2037出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JESTPE.2020.3008758
关键词
Inverters; Inductors; Windings; Capacitors; Modulation; Topology; Impedance; Boost inverter; leakage inductance; renewable applications; Y-source impedance network
资金
- University Grants Committee, Hong Kong
- Chinese University of Hong Kong [PgS3131023]
A new inverter design with coupled inductors and two Y-source networks has been proposed to achieve high voltage gain and significantly reduce switching losses for semiconductors. The effects of leakage inductances due to imperfect coupling have been minimized by incorporating two lossless diodes into the design.
A three-winding coupled inductor connected as a Y-shaped impedance network has been used in dc-dc and dc-ac converters for producing a high voltage gain for renewable applications. Its versatility is further extended in this article by the proposed differential Y-source inverter with two Y-source networks. The proposed inverter is modulated by a half-sine wave, which permits only one coupled inductor and two power switches of a phase-leg to operate at a high switching frequency during each half-fundamental cycle. The outcome is significantly reduced switching losses for its semiconductors. As for leakage inductances due to imperfect coupling, their effects have been minimized by two lossless diodes, included to prevent abrupt dissipation of leakage energy. Instead, the leakage energy discharges and then recycles to the dc-link capacitors, which, in turn, help to clamp voltages across the power switches. Detailed analyses of the inverter are given in this article, supported by simulation and experimental results obtained with a 250-W prototype for boosting a 30-V dc input to a 110-V ac output.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据