公开(公告)号：US20210288504A1

公开(公告)日：2021-09-16

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 ,  H02J3/38 ,  H02J1/10 ,  H02J1/12

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.

公开(公告)号：US20210267031A1

公开(公告)日：2021-08-26

申请号：US17261634

申请日：2019-07-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kengo MIYAMOTO ,  Kota MAEBA

IPC: H05B45/14 ,  H05B45/34

Abstract: A load control system includes a switch, a controller, an additional functioning unit, a power source, and an adjuster. The controller is configured to switch the switch between a conduction state and a non-conduction state. The switch is electrically connected in series to a load with respect to an alternating-current power source. The additional functioning unit is configured to perform a process different from switching operation of the switch. The power source receives electric power supplied from the alternating-current power source to generate electric power to be supplied to the controller and the additional functioning unit. The adjuster adjusts a supply time period during which the power source is supplied with electric power from the alternating-current power source in a maximum load state of a state where the additional functioning unit normally operates, electric power consumption by the additional functioning unit being maximum in the maximum load state.

公开(公告)号：US20200019199A1

公开(公告)日：2020-01-16

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: G05F1/46 ,  H02M3/156 ,  H02M7/48 ,  H02J1/10

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.