Patents by Inventor Mika Imai

Mika Imai 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).

  • Power grid stabilization system and power grid stabilization method
    Patent number: 9671807
    Abstract: Plural power storage systems 10 are provided in a power system. The power storage systems 10 are connected to a management system 60 via a communication network CN1. The power storage systems each include a power storage device 11, 12, and a control device 100 for controlling the power storage device. The control device stores performance information about the power storage system including the control device, location information indicating a location in the power system of the power storage system including the control device, and order information indicating an order of operation allocated to the power storage system including the control device. When a disturbance occurs in the power system, the control device performs a predetermined compensation operation based on the location information and the order information, and then returns to a preset stand-by state.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: June 6, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Shigeaki Namba, Atsushi Honzawa, Hiroto Takeuchi, Kazuyuki Tsunoda, Mika Imai
  • POWER GRID STABILIZATION SYSTEM AND POWER GRID STABILIZATION METHOD
    Publication number: 20140365027
    Abstract: Plural distributed power storage systems are used to stabilize a power system. Plural power storage systems 10 are provided in a power system. The power storage systems 10 are connected to a management system 60 via a communication network CN1. The power storage systems each include a power storage device 11, 12, and a control device 100 for controlling the power storage device. The control device stores performance information about the power storage system including the control device, location information indicating a location in the power system of the power storage system including the control device, and order information indicating an order of operation allocated to the power storage system including the control device. When a disturbance occurs in the power system, the control device performs a predetermined compensation operation based on the location information and the order information, and then returns to a preset stand-by state.
    Type: Application
    Filed: January 6, 2012
    Publication date: December 11, 2014
    Applicant: HITACHI, LTD.
    Inventors: Shigeaki Namba, Atsushi Honzawa, Hiroto Takeuchi, Kazuyuki Tsunoda, Mika Imai