Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1997-01-16
1997-12-23
Ro, Bentsu
Electricity: motive power systems
Induction motor systems
Primary circuit control
318800, 318432, H02P 7628
Patent
active
057010668
ABSTRACT:
A control system for an induction motor of the present invention independently commands the torque current component and the exciting current component of a stator current group supplied to the stator of an induction motor so as to feed-back control the amplitude and phase of the stator current group. The torque current component is commanded to control the output torque of the induction motor in correspondence with the output of a steering force sensor for detecting the steering force. According to an electric power steering apparatus using an induction motor controlled by the control system, a permanent magnet is not used for the motor so additional equipment such as a clutch is not required. Consequently, the structure can be simplified and the size of the unit can be reduced. Further, manual steering operation can be performed in the case of failure.
REFERENCES:
patent: 4672287 (1987-06-01), Fujioka et al.
patent: 4753309 (1988-06-01), Maramoto et al.
patent: 4808903 (1989-02-01), Matsui et al.
patent: 4865148 (1989-09-01), Maramoto et al.
patent: 4875539 (1989-10-01), Abukawa et al.
patent: 4960178 (1990-10-01), Abukawa et al.
patent: 5033565 (1991-07-01), Abukawa et al.
patent: 5067576 (1991-11-01), Bober
patent: 5150029 (1992-09-01), Watanabe et al.
T. Kanmachi, et al., "Sensor-less Speed Control of an Induction Motor without Secondary Resistances", Nagaoka University of Technology, Japan, pp. 243-246.
Igarashi Yoshiaki
Kondou Yasuhiro
Matsuura Sadahiro
Satou Shigeru
Matshushita Electric Industrial Co., Ltd.
Ro Bentsu
LandOfFree
Control system for an induction motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system for an induction motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for an induction motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1804455