H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 21/02 (2006.01) H02K 11/00 (2006.01)
Patent
CA 2238258
A method for compensating for magnetic pull in an electrical machine having a discoidal structure and comprising at least three coaxial rotor and stator discs (1, 6, 7) defining two air gaps (e1, e2), the outer discs (6, 7) being of a different type to that of the inner disc (1). The method comprises measuring a single quantity representative of the value of each of the two air gaps (e1, e2), comparing said quantities, and altering the fluxes of the air gaps (e1, e2) to balance the values thereof and thereby compensate for said pull.
L'invention concerne un procédé de compensation des forces d'attraction magnétique à l'intérieur d'une machine électrique à structure discoïde comportant au moins trois disques rotor et stator (1, 6, 7) disposés coaxialement et formant deux entrefers (e1, e2), les disques extérieurs (6, 7) étant d'un type différent de celui du disque intérieur (1), caractérisé en ce qu'il consiste à: mesurer pour chacun des deux entrefers (e1, e2), une même grandeur représentative de la valeur de l'entrefer; comparer lesdites grandeurs; et modifier les flux des entrefers (e1, e2) pour équilibrer la valeur des deux entrefers, et ainsi, compenser lesdites forces d'attraction.
Bondu Alain
de Simon Eddy
Milet Yves
Framatome
Jeumont Industrie
Mcfadden Fincham
LandOfFree
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