公开(公告)号：US20190326754A1

公开(公告)日：2019-10-24

申请号：US16373031

申请日：2019-04-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YASUFUMI TAKAHASHI ,  TOMOKI ITO ,  ATSUSHI SHIMIZU

IPC: H02J3/32 ,  H01M8/22 ,  H02J3/38 ,  G05F1/66

Abstract: A power system includes: a storage battery; a water electrolyzer; a fuel cell that generates electricity using hydrogen supplied from a hydrogen reservoir that stores hydrogen generated by the water electrolyzer; a detector that detects whether there is a person in a building; and a controller that performs at least one of first control and second control. The first control determines a priority between the storage battery and the water electrolyzer, to which electric power is supplied from a power generation device using renewable energy, based on information detected by the detector. The second control determines a priority between the storage battery and the fuel cell, from which electric power is supplied to a power load provided in the building, based on the information detected by the detector.

公开(公告)号：US20190386491A1

公开(公告)日：2019-12-19

申请号：US16381056

申请日：2019-04-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TOMOKI ITO ,  YASUFUMI TAKAHASHI ,  ATSUSHI SHIMIZU

IPC: H02J3/46 ,  H02J1/10 ,  H02J7/00 ,  H01M8/04858 ,  H01M8/0606

Abstract: A power supply system includes: a hydrogen generation device that uses electric power to generate hydrogen; a hydrogen storage device that stores hydrogen generated by the hydrogen generation device; a fuel cell system that uses hydrogen stored in the hydrogen storage device to generate electric power; a power storage device; and a control device executing at least one of first control and second control based on an electricity expense, the first control controlling a first ratio between electric power to be supplied from a natural energy power generation device to the hydrogen generation device and electric power to be supplied from the natural energy power generation device to the power storage device, the second control controlling a second ratio between electric power to be supplied from the power storage device to a load and electric power to be supplied from the fuel cell system to the load.