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：US11329488B2

公开(公告)日：2022-05-10

申请号：US17258092

申请日：2019-06-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Wataru Horio ,  Hiroyuki Fujii ,  Kenji Hanamura ,  Kota Maeba

IPC: H02J3/46 ,  H02J1/10 ,  H02J1/12 ,  H02J3/38 ,  H02J3/32

Abstract: The converter circuit includes an inverter. The converter circuit receives DC power from a DC power supply (such as a solar cell or a storage battery unit), has the DC power converted into AC power by at least the inverter, and outputs the AC power to a load or a power grid. When acquiring information that two or more types of power curtailment causes have arisen, a control circuit makes the converter circuit limit power output to a maximum degree of power curtailment out of two or more degrees of power curtailment according to specifics of the two or more types of power curtailment causes.