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    • 8. 发明授权
    • A WIND POWER PLANT
    • 风力发电厂
    • EP1034604B1
    • 2005-01-12
    • EP98961237.9
    • 1998-11-30
    • ABB AB
    • LEIJON, MatsKYLANDER, Gunnar
    • H02K3/40F03D9/00
    • H02K3/40F03D9/25F03D15/00H02K7/1838H02K2203/15Y02E10/725Y10S174/15Y10S174/28
    • The magnetic circuit of a generator in a wind power plant is arranged to directly supply a high supply voltage of 2-50 kV, preferably higher than 10 kV. The generator is provided with solid insulation and its winding includes a cable ( 6 ) comprising one or more current-carrying conductors ( 31 ) with a number of strands ( 36 ) surrounded by at least one outer and one inner semiconducting layer ( 34, 32 ) and intermediate insulating layers ( 33 ). The outer semiconducting layer ( 34 ) is at earth potential. The stator winding may be produced with full or fractional slot winding, the phases of the winding being Y-connected. The Y-point may be insulated and protected from over-voltage by means of surge arrestors, or else the Y-point may be earthed via a suppression filter. The invention also relates to a wind power plant, a generator included in the plant and a variable speed system for such a plant.
    • 风力发电站中的发电机的磁路被布置为直接供应2-50kV的高供电电压,优选地高于10kV。 发生器具有固体绝缘体并且其绕组包括包含一个或多个载流导体(31)的电缆(6),其具有由至少一个外部半导体层和一个内部半导体层(34,32)包围的多个股线 )和中间绝缘层(33)。 外半导体层(34)处于地电位。 定子绕组可以用完全或分段的槽绕组制造,绕组的相位是Y连接的。 Y点可以通过避雷器进行绝缘和过压保护,否则Y点可能会通过抑制滤波器接地。 本发明还涉及一种风力发电设备,包括在该设备中的发电机以及用于这种设备的变速系统。