THREE-PHASE ASYNCHRONOUS ELECTRIC MACHINE AND METHOD OF MANUFACTURE THEREOF
Disclosed are axial-gap electrical machines which magnetic core elements are made of wound magnetic ribbons to provide relatively lightweight and small size implementations that can be operated in a wide range of operational modes with minimized magnetic and electrical losses. The axial-gap electric...
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Zusammenfassung: | Disclosed are axial-gap electrical machines which magnetic core elements are made of wound magnetic ribbons to provide relatively lightweight and small size implementations that can be operated in a wide range of operational modes with minimized magnetic and electrical losses. The axial-gap electrical machine comprise a cylindrically-shaped stator assembly having a central passage passing there along, a rotatable shaft passing within the central passage of the stator assembly coaxial to the axis of rotations of the electric machine, and one or two annular rotor assemblies concentrically attached to the shaft and magnetically coupled to the at least one cylindrically-shaped stator assembly. The stator assembly can have a plurality of prism- haped magnetic core elements made from a plurality of magnetic ribbon layers extending along its length, and a primary winding comprising a plurality of coils mounted over the prism-shaped magnetic core elements. Each rotor assembly can have a toroidal-shaped magnetic core element made from a spiral wound of magnetic ribbon, and a secondary (short-circuit) winding comprising a spider-shaped electrically conducting structure having a plurality of electrically conducting spokes radially extending between concentric inner and outer electrically conducing rings electrically connected to said spokes.
Se describen máquinas eléctricas de espacio axial cuyos elementos de núcleo magnético están hechos de cintas magnéticas enrolladas para proporcionar implementaciones relativamente ligeras y de tamaño pequeño que pueden funcionar en una amplia gama de modos operativos con pérdidas magnéticas y eléctricas minimizadas. La máquina eléctrica de espacio axial comprende un conjunto de estator de forma cilíndrica que tiene un pasaje central que pasa a lo largo del mismo, un eje giratorio que pasa dentro del pasaje central del conjunto de estator coaxial al eje de rotación de la máquina eléctrica, y uno o dos conjuntos de rotor anular unido concéntricamente al eje y acoplado magnéticamente al por lo menos un conjunto de estator de forma cilíndrica. El conjunto de estator puede tener una pluralidad de elementos de núcleo magnético en forma de prisma hechos de una pluralidad de capas de cinta magnética que se extiendan a lo largo de su longitud, y un devanado primario que comprenda una pluralidad de bobinas montadas sobre los elementos de núcleo magnético en forma de prisma. Cada conjunto de rotor puede tener un elemento de núcleo magnético |
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