論文

• Kazunori Hasegawa, Hirofumi Akagi. Low-modulation-index operation of a five-level diode-clamped PWM inverter with a dc-voltage-balancing circuit for a motor drive, IEEE Transactions on Power Electronics, vol. 27, no. 8, pp. 3495-3504, Aug. 2012.
• Kazunori Hasegawa, Hirofumi Akagi. A new dc-voltage-balancing circuit including a single coupled inductor for a five-level diode-clamped PWM inverter, IEEE Transactions on Industry Applications, IEEE, vol. 47, no. 2, pp. 841-852, Apr. 2011.
• 長谷川一徳, 赤木泰文. モータドライブ用5レベルダイオードクランプPWMインバータに適した直流電圧均一回路, 電気学会論文誌D, 電気学会, Vol. 130, No. 5, pp. 677-684, May 2010.
• 長谷川一徳, ﾊｯﾃｨ ﾅｯﾁｬﾎﾟﾝ, 赤木 泰文. 5レベルダイオードクランプPWMインバータを用いたトランスレス・モータドライブ ―ファン・ブロワ負荷への応用―, 電気学会論文誌D, 電気学会, Vol. 129, No. 4, pp. 438-445, Apr. 2009.
• Natchpong Hatti, Kazunori Hasegawa, Hirofumi Akagi. A 6.6-kV transformerless motor drive using a five-level diode-clamped PWM inverter for energy savings of pumps and blowers, IEEE Transactions on Power Electronics, IEEE, vol. 24, no. 3, pp. 796-803, Mar. 2009.

国際会議発表 (査読有り)

• Kazunori Hasegawa, Hirofumi Akagi. Low-Speed Rated-Torque Operation of a Motor Drive Using a Five-Level Diode-Clamped PWM Inverter with a Front-End Diode Rectifier, IEEE International Conference on Power Electronics -ECCE Asia, pp. 1371-1377, May 2011.
• Kazunori Hasegawa, Hirofumi Akagi. Voltage Balancing of the Four Split DC Capacitors for a Five-Level Diode-Clamped PWM Inverter with a Front-End Diode Rectifier, International Power Electronics Conference (IPEC), IEEJ/IEEE, pp. 734-739, June 2010.
• Kazunori Hasegawa, Hirofumi Akagi. A new dc-voltage-balancing circuit including a single coupled inductor for a five-level diode-clamped PWM inverter, IEEE Energy Conversion Congress and Exposition, IEEE Energy Conversion Congress and Exposition, IEEE, pp. 2153-2159, Sept. 2009.
• Natchpong Hatti, Kazunori Hasegawa, Hirofumi Akagi. A 6.6-kV transformerless motor drive using a five-level diode-clamped PWM inverter for energy savings of pumps and blowers, IEEE Power Electronics Specialists Conference, 2008., pp. 352-358, June 2008.

特許など

• 赤木泰文, 長谷川一徳. 電圧均一回路. 特許. 登録. 国立大学法人東京工業大学. 2009/03/16. 特願2009-063567. 2010/09/30. 特開2010-220364. 特許第5483231号. 2014/02/28 2014.

学位論文

• 交流電動機駆動用5レベルPWMインバータの直流電圧均一回路の研究,  本文,  博士(工学),  東京工業大学,  2012/03/26, 

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