公开(公告)号：US11411428B2

公开(公告)日：2022-08-09

申请号：US16582156

申请日：2019-09-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kota Maeba ,  Akihiro Kikuchi ,  Wataru Horio ,  Hiroyuki Fujii ,  Kenji Hanamura ,  Tomoki Ito

IPC: H02J1/10 ,  H02J13/00 ,  H02M7/48 ,  H02J3/38 ,  H02J7/35 ,  G05F1/46 ,  H02M3/156 ,  H02M1/00 ,  H02J3/32 ,  H02J1/12

Abstract: In a power converter including: a first DC-DC converter, an inverter, and a control circuit, a second DC-DC converter that controls an input and an output of a power storage unit is connectable to a DC bus. The control circuit deactivates a reverse power flow suppression function for suppressing a reverse power flow from the inverter to a power system when the second DC-DC converter is not connected to the DC bus and activates the reverse power flow suppression function when the second DC-DC converter is connected to the DC bus.

公开(公告)号：US11025056B2

公开(公告)日：2021-06-01

申请号：US16475611

申请日：2018-01-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akihiro Kikuchi ,  Kenji Hanamura ,  Tomoki Ito

IPC: H02J1/00 ,  H02J3/00 ,  H02J1/10 ,  H02J3/28 ,  H02J3/38 ,  H02M1/00 ,  H02S40/32 ,  H02M3/00 ,  H02M7/44

Abstract: In a power converter, a DC bus is supplied with a DC power from a voltage conversion circuit for regulating a voltage of a power output from a DC power supply, a voltage of the DC power being regulated by the voltage conversion circuit. An inverter converts a DC power on the DC bus into an AC power and supplies the AC power as converted to a power system. A controller controls the inverter. When it is necessary to suppress an output, the controller suppresses the AC power supplied by the inverter to increase a voltage on the DC bus.