公开(公告)号：US4074174A

公开(公告)日：1978-02-14

申请号：US653197

申请日：1976-01-28

Applicant: Katutaro Kuge

Inventor： Katutaro Kuge

IPC: G01R25/00 ,  H02J3/34 ,  H02P1/26 ,  H02P23/00 ,  H02P27/05

CPC classification number: H02P27/06 ,  H02P23/08 ,  H02P25/26 ,  H02P21/09 ,  H02P2201/13

Abstract: A super-synchronous Scherbius apparatus which enables wound rotor type induction motors to have a smooth speed control below and above the synchronous speed by controlling the secondary power in either the forward or backward direction through the connection of a cyclo-converter on its secondary side includes a first detecting circuit for detecting a signal corresponding to the primary voltage or the rotating magnetic field, a second detecting circuit for detecting a signal corresponding to the position of the rotor, and a calculating circuit for forming a signal corresponding to the phase of the secondary voltage in accordance with the signals of the first and second detecting circuits.

公开(公告)号：US3526816A

公开(公告)日：1970-09-01

申请号：US3526816D

申请日：1967-12-07

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： PAICE DEREK A ,  ROSA JOHN

IPC: H02P1/32

CPC classification number: H02P27/06 ,  H02P21/09 ,  H02P23/08 ,  H02P25/26 ,  H02P2201/13