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Document US000006448734B1 (Pages: 6)

Bibliographic data Document US000006448734B1 (Pages: 6)
INID Criterion Field Contents
54 Title TI [EN] Method for current regulation of permanently excited synchronous motors for guided missiles having an electromechanical actuating drive for the rudder
71/73 Applicant/owner PA LFK GMBH, DE
72 Inventor IN FRENZEL BERNHARD, DE ; KILGER FRIDBERT, DE
22/96 Application date AD Feb 20, 2001
21 Application number AN 78566101
Country of application AC US
Publication date PUB Sep 10, 2002
33
31
32
Priority data PRC
PRN
PRD
DE
10007120
20000217
51 IPC main class ICM H02P 5/28
51 IPC secondary class ICS
IPC additional class ICA
IPC index class ICI
Cooperative patent classification CPC H02P 6/28
MCD main class MCM
MCD secondary class MCS H02P 6/28 (2016.01)
MCD additional class MCA
57 Abstract AB [EN] In a method for current regulation of permanently excited synchronous motors for guided missiles with an electromechanical actuating drive for the rudder, the commanded current is always guided orthogonally to the magnet-wheel flow. Further:a) from measured current of two voltage phases, a measured magnitude of a current-space pointer is determined and an error value for the current is added to a desired value of the amount via a correction regulator; andb) from measured current of two voltage phases as well as from the angle command of the current-space pointer, a measurement for the angle error is determined and added to the desired angle value via a correction regulator.The method according to the invention can be implemented with little hardware expenditure and in a compact design size, even for high rotational speeds of >10,000 min-1. Current-regulating methods used heretofore, which involve frequency response compensation in polar coordinates, cannot be used with synchronous motors, i.e. explicit determination of the angle of the space-current pointer fails in cases where the measured current disappears.
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56 Cited documents indicated by the applicant CT DE000019635847A1
56 Cited non-patent literature identified in the search CTNP
56 Cited non-patent literature indicated by the applicant CTNP
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Search file IPC ICP H02P 21/00 J
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