Electrical generator or motor structure – Dynamoelectric – Linear
Patent
1998-04-08
2000-06-20
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Linear
310 51, H02K 4100, H02K 524
Patent
active
060781149
ABSTRACT:
A variable reluctance linear motor has a stator and an armature mounted so as to be movable along the length of the stator. Armature bearings are mounted to the armature via mechanical vibration dampers and contact the stator so that vibrations in the stator are transmitted to the bearings and dissipated in said vibration dampers. A sensor is mounted to the armature for obtaining position data for the armature with respect to the stator. A controller then calculates the phase currents for the motor phases based on the position data and a desired force value. The phase currents are calculated to maintain a minimum normal force between the armature and said stator, thereby further reducing vibrations. A conditional filter is applied when armature is within a predetermined distance from a desired location. The conditional filter, after a time delay, clamps the velocity feedback to a predetermined range and simultaneously reduces the velocity loop gain.
REFERENCES:
patent: 4282768 (1981-08-01), Osborn
patent: 4755703 (1988-07-01), Ueno
patent: 4868431 (1989-09-01), Karita et al.
patent: 5084661 (1992-01-01), Tanaka
patent: 5241229 (1993-08-01), Katakura et al.
patent: 5374882 (1994-12-01), Matsubara et al.
patent: 5376851 (1994-12-01), Lipo et al.
patent: 5491598 (1996-02-01), Stricklin et al.
patent: 5726542 (1998-03-01), Ebihara
Bessette Steven C.
Coots Charles A.
York James E.
Zalesski Andrew
Jones Judson H.
Ramirez Nestor
Universal Instruments Corporation
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