Structure of novel generator stator

A new type of generator and stator structure technology, applied in the magnetic circuit shape/pattern/structure, the shape/pattern/structure of the winding insulation, the shape/pattern/structure of the winding conductor, etc., can solve the problem that the winding pitch cannot be arbitrarily selected, Inconvenient leads, large winding coefficient, etc., to achieve the effect of beautiful stator end, cost saving and cost reduction

Inactive Publication Date: 2007-11-28
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0003] The traditional stator winding adopts single-layer winding. Although it is equivalent to the full-pitch distributed winding, the utilization rate of the stator slot area is high, but the winding pitch cannot be selected arbitrarily, the ends overlap each other, it is inconvenient to lead, and the structure is more chaotic.
For the concentric winding, although the pitch coefficient is equal to 1, the winding coefficient is large, but the harmonic component is large

Method used

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  • Structure of novel generator stator
  • Structure of novel generator stator
  • Structure of novel generator stator

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Embodiment 1

[0025] The stator structure of the new generator includes stator punching sheets stacked to form a stator core 7, and an insulating layer is provided between the stator punching sheets. The stator winding 1 is wound by a high-voltage cable with a circular cross-section. The stator slot 2 for placing the stator winding 1 is a "sugar gourd string" type. The stator winding includes a cable conductor 8, an inner semiconducting layer 9, and an insulating layer 10 , the outer semiconductor layer 11 . The section of the stator winding cable is circular, and the twisted strands can of course also be a single wire or multiple wires or non-twisted strands.

[0026] Frame 4 is the main structural part of the high-voltage generator, which has a great influence on the interchangeability of the motor and the uniformity of the air gap. It is generally made of thin-walled castings, and the upper and lower ends of the inner wall are welded with binding rings 5, mainly for fixing polyester glas...

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Abstract

The invention discloses a new stator structure of high-pressure and hyperhigh-pressure generator, which consists of stator iron core (7) overlapped by stator punching sheets and frame (4), wherein the stator winding (1) is winded by high-pressure cable with round cross section to place the :sugarcoated haws string' in the stator groove (2); one cable is pierced in each groove of the stator. The invention insulates laminate, groove and phase without turn insulating to save cost and simplify operation, which improves the power quality for wind power generating, magnetic levitation train and diving and oil-submersible motors.

Description

technical field [0001] The invention relates to a generator stator structure, in particular to a stator structure suitable for high-voltage and ultra-high-voltage generators. Background technique [0002] Since the invention of the rotating electrical machine in the 19th century, the main structure and materials used in the electrical machine have not changed substantially. The traditional generator stator structure is composed of stator winding, stator core and frame. The iron core is formed by stacking iron core punches. The stator slots are mostly open slots or semi-closed slots, and the slot shapes are mostly round or pear-shaped. The stator bar is composed of a rectangular cross-section conductor with high electric strength epoxy as the main insulation. An uneven electric field is generated around the rectangular conductor. The electric field strength at the corner is relatively high, while the side is relatively low, so that the conductor is not stressed. all. To r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K3/12H02K3/04H02K3/34
Inventor 戈宝军
Owner HARBIN UNIV OF SCI & TECH
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