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Generator double-layer heterogeneous stator winding and double-layer heterogeneous transposition method

A generator stator and stator winding technology, which is applied in the shape/style/structure of winding conductors, wind power generation, electrical components, etc., can solve the problems of large additional loss of strands, improve service life and operation safety, and improve the use of Longevity and operational safety, the effect of reducing the difficulty of process manufacturing

Pending Publication Date: 2018-07-06
HARBIN UNIV OF SCI & TECH
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  • Description
  • Claims
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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the generator double-layer heterogeneous stator winding and the double-layer heterogeneous transposition method provided by the present invention solve the problem of excessive additional loss of strands in the existing stator winding

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  • Generator double-layer heterogeneous stator winding and double-layer heterogeneous transposition method

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Embodiment Construction

[0048] The following describes the specific embodiments of the present invention to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments, for those of ordinary skill in the art, as long as various changes These changes are obvious within the spirit and scope of the present invention defined and determined by the appended claims, and all inventions and creations that utilize the concept of the present invention are protected.

[0049] The double-layer heterogeneous stator winding of the generator in this scheme, the number of poles of the generator stator is 2, and each phase winding is composed of two parallel branches. For details, please refer to figure 1 , figure 1 The expanded view of the double-layer heterogeneous stator winding is shown. The stator winding has 2 poles, each pole has 12 slots per phase, and each phase winding is composed of 2 parallel b...

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Abstract

The invention discloses a generator double-layer heterogeneous stator winding and a double-layer heterogeneous transposition method, wherein the number of poles of a stator winding is 2, each phase ofwinding is composed of two parallel branches, a stator winding is a double-layer stack winding, each coil of the double-layer stack winding is a short-range coil, both an upper coil edge and a lowercoil edge are arranged in each groove, each coil edge is composed of two rows of transposition strands transversely arranged, and each upper coil edge has eight more strands than the corresponding lower coil edge; all transposition strands at the ends of the upper and lower coil edges are connected through a binding thimble. The upper coil edges are of an insufficient 0 degree / 540 degree / 0 degreetransposition mode; the lower coil edges are of 0 degree / 540 degree / 0 degree and void transposition combination mode. The generator double-layer heterogeneous stator winding and the double-layer heterogeneous transposition method can provide greatly reduced added loss for strands in the stator winding.

Description

Technical field [0001] The invention relates to the technical field of generator design and manufacturing, in particular to a double-layer heterogeneous stator winding of a generator and a double-layer heterogeneous transposition method. Background technique [0002] The stator winding is an important part of the generator. The additional loss of the stator winding not only affects the efficiency index of the generator, but also seriously affects the operational safety and service life of the generator. In order to reduce the additional loss of the stator winding of the generator, the conductor in the slot is generally formed by winding two rows of transposed strands arranged transversely, and a thin flat copper wire is used. Since each strand in the slot is in a different position of the complex AC magnetic field, there is an electromotive force difference between the loop formed by any two strands, and then a circulating current is formed, causing additional circulating current...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/14H02K3/28
CPCH02K3/14H02K3/28H02K2213/03Y02E10/72
Inventor 梁艳萍王泰丽边旭汪冬梅
Owner HARBIN UNIV OF SCI & TECH
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