Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-10-21
2000-03-07
Enad, Elvin
Electrical generator or motor structure
Dynamoelectric
Rotary
310112, 310114, H02K 709, H02K 720, H02K 1600
Patent
active
060344563
ABSTRACT:
A compact bearingless machine drive system includes: a first rotor segment; a first stator segment with the first stator segment including a drive winding and a first control winding; a second rotor segment; a second stator segment with the second stator segment including the drive winding and a second control winding; and a rotor shaft. The first and second rotor segments are attached to the rotor shaft. A common end ring is coupled between the first and second rotor segments. A drive inverter controls the drive winding to generate torque, and first and second control inverters control the first and second control windings to generate radial forces on the first and second rotor segments.
REFERENCES:
patent: 4841204 (1989-06-01), Studer
patent: 5424595 (1995-06-01), Preston et al.
patent: 5703423 (1997-12-01), Fukao et al.
patent: 5708346 (1998-01-01), Schob
patent: 5729066 (1998-03-01), Soong et al.
F. Matsumura, et al, Theory and Experiment of Magnetic Bearing Combining Radial Control and Thrust Control, IEEE Trans on Magnetics, vol. MAG-23, No. 5, Sep. 1987, pp. 2581-2583.
A. Chiba, et al., "Stable Operation of Induction-Type Bearingless Motors Under Loaded Conditions", IEEE Trans. On Industry Applications, vol. 33, No. 4, Jul./Aug. 1997, pp. 919-924.
A. Chiba, et al, "An Analysis of Bearingless AC Motors", IEEE Trans on Energy conversion, vol. 9, No. Mar. 1994, pp. 61-67.
C. Michioka, et al., "A Decoupling Control Method of Reluctance-Type Bearingless Motors Considering Magnetic Saturation", IEEE Trans. On Industry Applications, vol. 32, No. 5, Sep./Oct. 1996, pp. 1204-1210.
Y. Okada, "Levitation and Torque Control of Internal Permanent Magnet Type Bearingless Motor", IEEE Trans on Control Systems Technology, vol. 4., No. 5, Sep. 1996, pp. 565-571.
RT. Schob, et al, "Vector Control of the Bearingless Motor", Fourth International Symposium on Magnetic Bearings, Aug. 1994, ETH Zurich, pp. 327-332.
A. L. Jokl, Ph. D., Theory and Design of Synchrounous Machines, p. 2, 1993.
Garrigan Neil Richard
Osama Mohamed
Soong Wen Liang
Agosti Ann M.
Breedlove Jill M.
Enad Elvin
General Electric Company
Le Dane Dinh
LandOfFree
Compact bearingless machine drive system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compact bearingless machine drive system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact bearingless machine drive system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-366088