Modular multilevel battery (M2B) for electric vehicles
作者： F. Helling , J. Gluck , A. Singer , T. Weyh
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摘要: Electromobility is expected to successfully compete with conventional propulsion technology in the near future and thus creates new challenges for automotive industry. Major issues state of art electric vehicles (EVs) include limited range due insufficient energy density heavy weight existing battery storage systems, unsatisfactory charging duration as well comparatively high costs. A leap power electronics might meet these challenges, aforementioned characteristics are predominantly determined by EV system architectures converters. This paper presents a novel modular multilevel parallel converter-based split vehicles, enabling dynamic switching cells series. Each individual cell may be interconnected its neighbours according operational needs, e.g. provide optimum source resistance, lowest state-of-charge (SOC) cycling, balanced aging, rendering separate management systems (BMS) unnecessary. Applying proposed EVs fundamentally change powertrain charger topologies, it merges converter. forms basis highly integrated unit that includes traction converter, charger, BMS.
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