Patents by Inventor Shota MIDORIKAWA

Shota MIDORIKAWA 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).

  • Control device and power control system
    Patent number: 11283369
    Abstract: A control device for controlling a power source connected to an alternating-current (AC) power system includes: a frequency control unit that controls a frequency of the power source operating in a constant-voltage constant-frequency control scheme; a power calculation unit that calculates, when the frequency control unit varies a frequency of the power source, a variation of an effective power output from the power source; an arithmetic unit that calculates a frequency characteristics constant of the AC power system, based on a variation of the frequency of the power source and the variation of the effective power output from the power source; and a selection unit that selects a control scheme for the power source, based on the frequency characteristics constant of the AC power system.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 22, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shuhei Fujiwara, Yoshiyuki Kono, Kazuyori Tahata, Masashi Shigemitsu, Shota Midorikawa
  • CONTROL DEVICE AND POWER CONTROL SYSTEM
    Publication number: 20210021210
    Abstract: A control device for controlling a power source connected to an alternating-current (AC) power system includes: a frequency control unit that controls a frequency of the power source operating in a constant-voltage constant-frequency control scheme; a power calculation unit that calculates, when the frequency control unit varies a frequency of the power source, a variation of an effective power output from the power source; an arithmetic unit that calculates a frequency characteristics constant of the AC power system, based on a variation of the frequency of the power source and the variation of the effective power output from the power source; and a selection unit that selects a control scheme for the power source, based on the frequency characteristics constant of the AC power system.
    Type: Application
    Filed: June 7, 2018
    Publication date: January 21, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shuhei FUJIWARA, Yoshiyuki KONO, Kazuyori TAHATA, Masashi SHIGEMITSU, Shota MIDORIKAWA