"Makoto Hagiwara,HUI PENG,Hirofumi Akagi","モジュラー・マルチレベル・カスケードインバータ（MMCI-DSCC）の共通直流リンクに発生するスイッチングリプル電圧の検討",,"電気学会産業応用部門誌","電気学会","Vol. 131","No. 12","pp. 1424-1432",2011,Dec.
"Makoto Hagiwara,Ryo Maeda,Hirofumi Akagi","モジュラー・マルチレベル・カスケード変換器（MMCC-SDBC）のSTATCOMへの応用?有効電力・逆相無効電力制御?",,"電気学会産業応用部門誌","電気学会","Vol. 131","No. 12","pp. 1433-1441",2011,Dec.
"Makoto Hagiwara,Ryo Maeda,Hirofumi Akagi","Negative-Sequence Reactive-Power Control by a PWM STATCOM Based on a Modular Multilevel Cascade Converter (MMCC-SDBC)","IEEE Energy Conversion Congress and Exposition 2011",,"IEEE",,,"pp. 3728-3735",2011,Sept.
"Masashi Doi,Wataru Kawamura,Makoto Hagiwara,Hirofumi Akagi","モジュラー・マルチレベル・カスケード変換器 (MMCC) ―III. DSCC (Double-Star Chopper-Cells)方式BTBシステムの基礎実験―","平成23年電気学会産業応用部門大会",,,,"  1-38","pp. I-247-I-250",2011,Aug.
"Wataru Kawamura,NUNTAWAT THITICHAIWORAKORN,Makoto Hagiwara,Hirofumi Akagi","モジュラー・マルチレベル・カスケード変換器(MMCC)―V. DSBC(Double-Star Bridge-Cells) 方式の風力発電システムへの応用―","平成23年電気学会産業応用部門大会",,,,"  1-40","pp. I-255-I-258",2011,Aug.
"Isamu Hasegawa,Makoto Hagiwara,Hirofumi Akagi","モジュラー・マルチレベル・カスケード変換器(MMCC) ―IV. DSCC(Double-Star Chopper-Cells)方式の高圧モータドライブへの応用―","平成23年電気学会産業応用部門大会",,,,"  1-39","pp. I-251-I-254",2011,Aug.
"Makoto Hagiwara,Ryo Maeda,Hirofumi Akagi","Control and Analysis of the Modular Multilevel Cascade Converter Based on Double-Star Chopper-Cells (MMCC-DSCC)",,"IEEE Transactions of Power Electronics","IEEE","Vol. 26","No. 6","pp. 1649-1658",2011,June
"Isamu Hasegawa,Makoto Hagiwara,Hirofumi Akagi","モジュラー・マルチレベル・カスケードインバータ(MMCI-DSCC)を用いたモータドライブのバッファリアクトルに関する検討","平成23年電気学会全国大会",,,,"  4-079",,2011,Mar.
"前田 亮,Makoto Hagiwara,赤木 泰文","モジュラー・マルチレベル・カスケード変換器(MMCC-SDBC)を用いたSTATCOM : 有効電力・逆相無効電力制御",,"電気学会研究会資料. SPC, 半導体電力変換研究会",,"Vol. 2011","No. 1","pp. 65-70",2011,Jan.
"Makoto Hagiwara,Ryo Maeda,Hirofumi Akagi","Theoretical Analysis and Control of the Modular Multilevel Cascade Converter Based on Double-Star Chopper-Cells",,"電気学会産業応用部門誌","IEEJ","Vol. 131","No. 1","pp. 84-92",2011,Jan.