H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 1/28 (2006.01)
Patent
CA 2759270
The invention relates to a rotating electric machine, in particular a double-fed asynchronous machine in the performance range between 20 and 500 MVA, which comprises a rotor, which rotates about an axis and is surrounded concentrically by a stator, the rotor having a rotor laminate stack (14) , which is constructed from laminations which are layered and are pressed in the axial direction using a press plate (19) to form a composite, said rotor laminate stack being divided in the radial direction into an inner mechanical region (14b) and an outer electrical region (14a), and a rotor winding (18) being accommodated in the electrical region (14a) in said rotor laminate stack. In such a machine, the axial bracing of the rotor laminate stack is optimized by virtue of the fact that the press plate (19) is divided radially into a separate inner press plate and a separate outer press plate corresponding to the radial division of the rotor laminate stack (14).
L'invention concerne une machine électrique rotative, en particulier une machine asynchrone à double alimentation d'un niveau de puissance compris entre 20 MVA et plus de 500 MVA. La machine comprend un rotor tournant autour d'un axe et entouré de manière concentrique par un stator. Le rotor présente un corps en tôle (14) du rotor constitué de couches de tôles, comprimées dans le sens axial au moyen d'une plaque de compression (19) pour former un ensemble. Le corps est divisé dans le sens radial en une zone mécanique interne (14b) et une zone électrique externe (14a), un enroulement de rotor (18) étant logé dans la zone électrique (14a). Dans une telle machine, le serrage axial du corps en tôle du rotor est optimisée du fait que la plaque de compression (19) est divisée radialement, de manière correspondante à la division radiale du corps en tôle (14) du rotor, en une plaque de compression interne distincte et une plaque de compression externe distincte.
Cifyildiz Serdar
Meyer Bruno
Okai Ricardo
Schwery Alexander
Walser Hanspeter
Alstom Hydro France
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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