Versatile ac dynamo-electric machine and ups systems...

Details Versatile ac dynamo-electric machine and ups systems... Versatile ac dynamo-electric machine and ups systems...

H - Electricity

02

K

H02K 11/00 (2006.01) F02N 11/04 (2006.01) H02K 7/02 (2006.01) H02K 7/20 (2006.01) H02K 16/00 (2006.01) H02K 21/04 (2006.01) H02K 21/22 (2006.01) H02K 47/04 (2006.01) H02K 47/20 (2006.01) H02P 1/32 (2006.01) H02P 9/08 (2006.01) H02K 5/16 (2006.01) H02K 21/46 (2006.01) H02K 21/48 (2006.01)

Patent

CA 2168977

The invention comprising a versatile AC dynamo-electric machine (10) comprising isolated dual stators (50 and 50B and 50C), each both con- centrated windings (53C) energizable with single- phase AC, and main windings (53) and a single high inertia sleeve (75) and drive plate (74 and 74A) connected to a rotor shaft (70 - 73A). The sleeve contains independent electrical rotors (80 and 80A), one for each stator. Each rotor has an innermost layer (82) of magnetizable permanent magnetic material in which the concentrated coils in the stator produce a desired pattem of magnetic poles reacting with the rotating field of the main windings. The machine can function a) as a syn- chronous AC motor, or b) a constant frequency output dual AC generator or c) as an AC motor- generator with long ride-through time. A UPS system (100) comprises the machine (10) in the motor-generator mode, with clutch means (124) to connect an engine (114) to the rotor shaft (73A) to start the engine.

Motoalternateur CA hybride (10) à deux stators isolés (50 et 50B et 50C) comportant chacun deux enroulements concentrés (53C) alimentés en courant CA monophasé et un enroulement principal (53) ainsi qu'un volant cylindrique unique de grande inertie (75) et des flasques d'entraînement (74 et 74A) solidaires de l'arbre du rotor (70, 73A). Le volant comporte deux rotors indépendants (80 et 80A) soit un par stator. Chacun des rotors comporte une couche interne (82) de matériau magnétique permanent magnétisable dans laquelle les bobinages concentrés du stator produisent la distribution voulue de pôles magnétiques réagissant avec le champ tournant de l'enroulement principal. La machine peut fonctionner a) en moteur synchrone CA, ou b) en alternateur double à fréquence stabilisée ou c) en motoalternateur CA à longue période inertielle. Un groupe de secours sans coupure (100) comporte la machine fonctionnant en motoalternateur, ainsi qu'un embrayage (124) destiné à accoupler un moteur à l'arbre du rotor (73A) en vue du démarrage dudit moteur.

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