公开(公告)号：US20220278602A1

公开(公告)日：2022-09-01

申请号：US17629066

申请日：2020-07-22

申请人： Brek Electronics Inc. ,  The Regents of the University of Colorado, a body

发明人： ROBERT ERICKSON ,  AARON ROGERS ,  ROGER BELL

IPC分类号： H02M1/00 ,  H02M7/48 ,  H02M7/5387

摘要： Inverters that interface dc and ac power sources and loads are provided. An example application is solar power systems, in which a dc source of power is an array of solar panels; the inverter converts the dc power supplied by these panels to ac power that is fed into the utility grid. Another example is battery energy storage; the inverter changes the dc power of the batteries into ac power that is fed into the grid, and also can convert (rectify) ac power from the grid for charging the batteries. In one embodiment, for example, an inverter comprises slow switches that generate a three-level ac voltage, followed by a plurality of fast-switching half-bridges that introduce high-frequency pulse-width modulation into a plurality of ac output voltages.

公开(公告)号：US12132387B2

公开(公告)日：2024-10-29

申请号：US17629066

申请日：2020-07-22

申请人： Brek Electronics Inc. ,  The Regents of the University of Colorado, a body Corporate

发明人： Robert Erickson ,  Aaron Rogers ,  Roger Bell

IPC分类号： H02M7/48 ,  H02M1/00 ,  H02M7/5387

CPC分类号： H02M1/0043 ,  H02M1/0058 ,  H02M1/0085 ,  H02M1/009 ,  H02M7/4807 ,  H02M7/53871

摘要： Inverters that interface dc and ac power sources and loads are provided. An example application is solar power systems, in which a dc source of power is an array of solar panels; the inverter converts the dc power supplied by these panels to ac power that is fed into the utility grid. Another example is battery energy storage; the inverter changes the dc power of the batteries into ac power that is fed into the grid, and also can convert (rectify) ac power from the grid for charging the batteries. In one embodiment, for example, an inverter comprises slow switches that generate a three-level ac voltage, followed by a plurality of fast-switching half-bridges that introduce high-frequency pulse-width modulation into a plurality of ac output voltages.