パワーエレクトロニクス学会誌
Online ISSN : 1884-3239
Print ISSN : 1348-8538
論文・研究報告・講演資料
3レベルインバータによる大容量に適した双方向絶縁型DC/DC コンバータ
高木 駿川畑 良尚西山 裕紀澤井 雄輝川畑 隆夫
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42 巻 (2016) p. 58-66

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We have already proposed the new control method of the bidirectional isolated DC/DC converter with a current resonant circuit which can perform the zero-current switching and the power factor improvement by means of the pulse width control. This method is that the pulse width of the inverter of the higher d.c. voltage is narrowed to make equal the fundamental a.c. voltage of both inverters. However,in this current resonant circuit, since the reactor becomes large and the resistance increases, there is a problem that the improvement of the efficiency is not so high. In this paper, in order to solve these problems, a new bidirectional isolated dc/dc converter using the NPC 3 level inverter will be proposed.

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