Patents by Inventor Kenichirou BEPPU

Kenichirou BEPPU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Storage battery system and solar power generation system having the same
    Patent number: 9979200
    Abstract: A solar power generation system includes a storage battery, a solar power generation device that is provided on the side of the storage battery and outputs solar generated power, and a power control device. The power control device includes a variation component extraction unit that extracts a shade variation component from a generated power signal measured by the solar power generation device, and a smoothing unit that smoothens the shade variation component obtained by the variation component extraction unit. The power control device obtains a charge/discharge target value of the storage battery on the basis of an output signal from the smoothing unit.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 22, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Takeda, Taichi Nomura, Yuko Sano, Kenichirou Beppu, Yuuji Nagashima
  • Storage battery system and solar power generation system having the same
    Patent number: 9941734
    Abstract: A solar power generation system includes a storage battery, a solar power generation device that is provided on the side of the storage battery and outputs solar generated power, and a power control device. The power control device includes a variation component extraction unit that extracts a shade variation component from a generated power signal measured by the solar power generation device, a smoothing unit that smoothens the shade variation component obtained by the variation component extraction unit, a system output correction unit that obtains a system output power target value which is a combined output between a discharge output of the storage battery and the solar generated power on the basis of an output signal from the smoothing unit, and a charge/discharge output correction unit that corrects a charge/discharge target value which is a difference between the system output power target value and the generated power signal on the basis of a current time and a state of charge of the storage battery.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: April 10, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Yuko Sano, Kenji Takeda, Kenichirou Beppu, Yuuji Nagashima, Taichi Nomura
  • Storage Battery System and Solar Power Generation System Having the Same
    Publication number: 20160218514
    Abstract: A solar power generation system includes a storage battery, a solar power generation device that is provided on the side of the storage battery and outputs solar generated power, and a power control device. The power control device includes a variation component extraction unit that extracts a shade variation component from a generated power signal measured by the solar power generation device, and a smoothing unit that smoothens the shade variation component obtained by the variation component extraction unit. The power control device obtains a charge/discharge target value of the storage battery on the basis of an output signal from the smoothing unit.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 28, 2016
    Inventors: Kenji TAKEDA, Taichi NOMURA, Yuko SANO, Kenichirou BEPPU, Yuuji NAGASHIMA
  • Storage Battery System and Solar Power Generation System Having the Same
    Publication number: 20160218551
    Abstract: A solar power generation system includes a storage battery, a solar power generation device that is provided on the side of the storage battery and outputs solar generated power, and a power control device. The power control device includes a variation component extraction unit that extracts a shade variation component from a generated power signal measured by the solar power generation device, a smoothing unit that smoothens the shade variation component obtained by the variation component extraction unit, a system output correction unit that obtains a system output power target value which is a combined output between a discharge output of the storage battery and the solar generated power on the basis of an output signal from the smoothing unit, and a charge/discharge output correction unit that corrects a charge/discharge target value which is a difference between the system output power target value and the generated power signal on the basis of a current time and a state of charge of the storage battery.
    Type: Application
    Filed: January 27, 2016
    Publication date: July 28, 2016
    Inventors: Yuko SANO, Kenji TAKEDA, Kenichirou BEPPU, Yuuji NAGASHIMA, Taichi NOMURA