Galvanic Isolation System with Wireless Power Transfer for Multiple Gate Driver Supplies of a Medium-voltage Inverter

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2016/05/01

タイトル(英語): Galvanic Isolation System with Wireless Power Transfer for Multiple Gate Driver Supplies of a Medium-voltage Inverter

著者名: Keisuke Kusaka (Nagaoka University of Technology), Koji Orikawa (Nagaoka University of Technology), Jun-ichi Itoh (Nagaoka University of Technology), Isamu Hasegawa (MEIDENSHA CORPORATION), Kazunori Morita (MEIDENSHA CORPORATION), Takeshi Kondo (MEIDENSHA

著者名(英語): Keisuke Kusaka (Nagaoka University of Technology), Koji Orikawa (Nagaoka University of Technology), Jun-ichi Itoh (Nagaoka University of Technology), Isamu Hasegawa (MEIDENSHA CORPORATION), Kazunori Morita (MEIDENSHA CORPORATION), Takeshi Kondo (MEIDENSHA CORPORATION)

キーワード: wireless power transfer，inductive coupling，isolation，medium-voltage inverter，gate driver

要約(英語): In this paper, a gate driver supply, which supplies power to multiple gate drivers, is demonstrated. Robust isolation is required in the gate drive supplies of a medium-voltage inverter in order to drive high-voltage switching devices such as insulated-gate bipolar transistors. The proposed isolation system achieves isolation with transmission coils mounted on printed circuit boards. Furthermore, the isolation system transmits power from one transmitting board to six receiving boards. In the conventional system, the number of receivers is limited to one. In contrast, multiple receivers are acceptable in the proposed system. These characteristics help reduce the of the isolation system for the gate driver supplies.This paper presents the fundamental characteristics of the isolation system. The equivalent circuit of the proposed system can be derived by applying the equivalent circuit of a wireless power transfer system with a repeater coil. In addtion, a design method for the resonance capacitors is mathematically introduced using the equivalent circuit. It is verified that an isolation system with multiple receivers can be designed using the same resonance conditions as an isolation system with a single receiver.Moreover, the isolation system is experimentally demonstrated. It is confirmed that the isolation system transmits power with a maximum efficiency of 46.9% at an output power of 16.6W beyond an air gap of 50mm with only printed circuit boards.

本誌: IEEJ Journal of Industry Applications Vol.5 No.3 （2016）

本誌掲載ページ: 206-214 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/5/3/5_206/_article/-char/ja/