Patents by Inventor Yasuyuki Kowada

Yasuyuki Kowada 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 system control apparatus and power system control method
    Patent number: 6188205
    Abstract: A desired value of reactive power flow between a to-be-controlled power system and an adjoining power system is determined according to measured values of the reactive power flow and an effective power flow and desired voltage values of the to-be-controlled power system and of the adjoining power system. Thereafter, a required value of a reactive power of the to-be-controlled power system is calculated according to the desired value of the reactive power flow, the measured values of the reactive power flow and the effective power flow, and the desired voltage value and a measured voltage value in the to-be-controlled power system. Thereafter, a control apparatus having an electric capacity near to the required value of the reactive power is selected from control apparatus arranged in the to-be-controlled power system to make the selected control apparatus adjust a voltage of the to-be-controlled power system.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: February 13, 2001
    Assignees: Mitsubishi Denki Kabushiki Kaisha, The Kansai Electric Power Co., Inc.
    Inventors: Masahiko Tanimoto, Yoshio Izui, Yasuyuki Kowada, Kenji Iba, Naoto Fukuta, Kenichi Deno, Tetsuo Sasaki