公开(公告)号：EP2807737A1

公开(公告)日：2014-12-03

申请号：EP13741065.0

申请日：2013-01-13

申请人： Empower Micro Systems Inc.

发明人： ILIC, Milan ,  NUOTIO, Mika

IPC分类号： H02M7/48

CPC分类号： H02M7/5387 ,  G05F1/67 ,  H02J3/32 ,  H02J3/381 ,  H02J3/383 ,  H02J9/06 ,  H02M7/48 ,  H02M7/72 ,  H02M2001/0077 ,  Y02E10/563 ,  Y02E10/58 ,  Y02E60/721 ,  Y04S10/126

摘要： A stacked voltage source inverter having separate DC sources is described herein. This inverter is applicable to low or medium voltage, low to medium power applications such as photovoltaic utility interface systems, battery storage application such as peak shaving with renewables, motor drive applications and for electric vehicle drive systems. The stacked inverter consists of at least one phase wherein each phase has a plurality of low voltage full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with fast switching and small low pass AC output filter. A system controller controls operating parameters for each inverter. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.