Title:
DEVICE FOR RESTRICTING SHAFT TORQUE VARIATION IN ROTARY SHAFT SYSTEM
Document Type and Number:
Japanese Patent JPS52146818
Kind Code:
A
Abstract:
PURPOSE:To achieve rapid return to a normal shaft torque by controlling the field current of a synchronous motor in accordance with twisting of a rotary shaft to provide an electric damping for the motor, and by rapidly attenuating the shaft torque caused in short-circuiting or re-opening of a circuit.
Inventors:
FURUYAMA MASAYUKI
Application Number:
JP6348576A
Publication Date:
December 06, 1977
Filing Date:
June 02, 1976
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02P9/14; (IPC1-7): H02P9/14