公开(公告)号：US20190326752A1

公开(公告)日：2019-10-24

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: H02J1/10 ,  H02J3/38 ,  H02J3/28 ,  H02M1/00

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.

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.

公开(公告)号：US20230143398A1

公开(公告)日：2023-05-11

申请号：US17522083

申请日：2021-11-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomoki ITO ,  Akinori YUKIMASA ,  Satoshi OHARA ,  Yasuyuki SHINTANI ,  Kimihiko NAKATSUKASA

IPC: B60L53/62 ,  B60L53/67 ,  B60L53/68

CPC classification number: B60L53/62 ,  B60L53/67 ,  B60L53/68 ,  B60L2240/72 ,  B60L2260/54

Abstract: The present application provides a method of controlling an EV charger which is located at a charging site by a controller. The controller provides a charging signal thereto for controlling the EV charger to operate within a threshold power that is allowable at a management site. The method comprising receiving a consumption power reading used in the management site, and controlling a charging power to the EV charger so that the consumption power is less than the maximum consumption power.

公开(公告)号：US20220123336A1

公开(公告)日：2022-04-21

申请号：US17429460

申请日：2020-02-10

Applicant: Panasonic Intellectual Property Management Co.,Ltd.

Inventor： Tomoki ITO ,  Yasufumi TAKAHASHI ,  Atsushi SHIMIZU

IPC: H01M8/04858 ,  H02J7/00 ,  H01M8/0606 ,  H01M8/04082

Abstract: An electric power supply system includes: a hydrogen production device producing hydrogen using electric power supplied from a natural-energy power generator; a hydrogen storage device storing the produced hydrogen; a fuel cell system generating electricity using the stored hydrogen to supply the generated electric power to a load; an electric power accumulator accumulating electric power supplied from the natural-energy power generator, to supply the accumulated power to the load; and a control device controls supply of electric power from the fuel cell system and the electric power accumulator to the load. The control device executes a first control for supplying electric power to the load from each of the electric power accumulator and the fuel cell system in a time zone in which demanded power of the load is smaller than electric power dischargeable from the electric power accumulator.

公开(公告)号：US20220121235A1

公开(公告)日：2022-04-21

申请号：US17425217

申请日：2020-01-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takehiko ISE ,  Tomoki ITO ,  Atsushi SHIMIZU

IPC: G05F3/02 ,  H02J3/00 ,  G06Q50/06 ,  G06Q30/02

Abstract: The energy management system performs forecast of power consumption of the load of each of the first consumer and the second consumer; calculates a self-sufficiency rate of entirety of both the first consumer and the second consumer, based on self-sufficient electric power supplied to the load in accordance with the forecast of power consumption and on purchase electric power supplied from the electric power system to the load; and provides interchange control of energy so that at least a part of electric power generated by the renewable energy power generator of the second consumer is accumulated in the energy accumulator of the first consumer so that the self-sufficiency rate exceeds a threshold value.

公开(公告)号：US20190006957A1

公开(公告)日：2019-01-03

申请号：US16067611

申请日：2016-11-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomoki ITO ,  Yusuke IWAMATSU

IPC: H02M7/5387 ,  H02M1/12 ,  H02M7/483

Abstract: A bridge circuit converts input direct-current voltage and outputs alternating-current voltage. A filter circuit attenuates a high-frequency component of the alternating-current voltage output from the bridge circuit. A clamping circuit is disposed between the bridge circuit and the filter circuit, and is capable of short-circuiting the output side of the bridge circuit. A control circuit has a first mode in which a switching element causes the alternating-current voltage to be output to the filter circuit at three or more voltage levels, and a second mode in which the switching element causes the alternating-current voltage to be output to the filter circuit at two voltage levels. When power conversion devices have their alternating-current side output paths connected and operate in parallel, at least one of the power conversion devices operating in parallel operates in the second mode.