Patents Assigned to Masaki Takahashi
  • System for predicting desynchronization of a synchronous machine
    Patent number: 4350947
    Abstract: Desynchronization of a synchronous machine is predicted by detecting a phenomenon of radical variation of the magnetic flux in the gap of a synchronous machine immediately before falling into an asynchronous state. For example, each functional value of the direct axis flux and the quadrature axis flux in the gap is detected for comparing the variation of each functional value with a predetermined reference level to predict desynchronization of the synchronous machine.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: September 21, 1982
    Assignees: Fuji Electric Co. Ltd., Masaki Takahashi
    Inventors: Chikasa Uenosono, Takao Okada, Junya Matsuki, Tadashi Naito, Shinichiro Inoue, Masaki Takahashi