Wind power generator and stator iron core therof, and stator iron core module
AssigneeXinjiang Goldwind Science & Technology Co., Ltd.
InventorsYazhou Gao, Jing Xia, Xiang Zhao
Life of this patent
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Abstract
A wind power generator and stator iron core thereof, and stator iron core module; the iron core module (4) has an overall dimension consistent with a principle of the number of slots per pole per phase q=1; the iron core module (4) is provided with two three-phase winding units therein, an electrical angle formed by the two three-phase winding units is 30 degrees. The method of arranging winding in the stator iron core module (4) is changed to effectively reduce fifth and seventh winding harmonic magnetomotive forces.
Claims17
An iron core module of a stator of a wind power generator, wherein an overall dimension of the iron core module conforms to a principle that the number q of slots per pole per phase is one, two three-phase winding units are arranged in the iron core module, and an electrical angle difference between the two three-phase winding units is 30 degrees:
- and
- wherein the iron core module comprises a plurality of tooth slots for accommodating coils, each of the coils is sleeved in two of the plurality of tooth slots, the plurality of tooth slots comprise first tooth slots each being configured to accommodate one coil side and a second tooth slot configured to accommodate two coil sides;
- the number of the second tooth slot is one, the second tooth slot is arranged in a middle position of the plurality of tooth slots, and the number of the first tooth slots on a left side of the second tooth slot is equal to the number of the first tooth slots on a right side of the second tooth slot;
- two three-phase winding units having the same number of coils are arranged in the iron core module, the number of coils in each of the two three-phase winding units is an integer multiple of 3;
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- the two three-phase winding units are arranged on the left side and the right side of the second tooth slot as a center, respectively, and the adjacent coils of the two three-phase winding units each have one coil side arranged in the second tooth slot.
Dependencies are inferred from the claim text.