Oblon, McClelland, Maier & Neustadt, L.L.P.
Power converter
Since a power converter including a modular multilevel converter uses a large number of cells each combining a plurality of switching elements and a DC capacitor, there is a problem of conduction loss due to the switching elements. The conduction loss is reduced by connecting a bypass circuit between terminals of each of the cells, controlling to open and close the switching element, and controlling to short-circuit the bypass circuit connected to the cell controlled to output zero voltage.
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION Mitsubishi Electric Corporation
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Kaho Hisanori Akihiro Ryosuke Osamu Taichiro Toshiyuki
Mukunoki Taguchi Matsuda Uda Mori Tsuchiya Fujii