Title:
CONTROLLER FOR INDUCTION MACHINE
Document Type and Number:
Japanese Patent JPS58154396
Kind Code:
A
Abstract:
PURPOSE:To obtain a simple structure having no brush by suitably connecting the phase coils of a polyphase armature coil to a transfomer and a frequency converter. CONSTITUTION:The phase coils X, Y, Z of the polyphase armature coil 2 of an induction machine and the phases M, N, T of the secondary coils 6 of a transformer 14 are respectively connected in series with each other, thereby forming closed circuits which contain the respective phase armature coils X, Y, Z and the phases M, N, T of the secondary coils 6 of the transformer 14. The middle points U, V, W of the phases X, Y, Z of the coils 2 are the first terminal group, the terminls A, B, C of the primary coil 5 of the transformer 14 are the second terminal group, and the one terminal groups U, V, W of the first and second terminal groups and the AC connecting wires 21 are connected directly. Further, the other terminal groups A, B, C and the AC connecting wires 21 are connected through a frequency converter 10.
Inventors:
SHIBATA FUKUO
Application Number:
JP3629182A
Publication Date:
September 13, 1983
Filing Date:
March 08, 1982
Export Citation:
Assignee:
SHIBATA FUKUO
International Classes:
H02P23/00; H02P23/07; H02P25/02; H02P27/05; H02P27/06; (IPC1-7): H02P7/62