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Proper faction groove sinusoidal winding of equidistant synchronous generator

A synchronous generator and winding technology, which is applied in the shape/style/structure of the winding conductor to achieve the effects of traditional craftsmanship, sinusoidal phase voltage waveform and simple structure

Inactive Publication Date: 2007-05-02
TELLHOW SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

q=3 / 4 The true fractional slot winding is an equal-turn double-layer short-distance winding according to the traditional structure, but this kind of winding cannot make the waveform distortion rate of the line voltage and phase voltage less than 2%.

Method used

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  • Proper faction groove sinusoidal winding of equidistant synchronous generator
  • Proper faction groove sinusoidal winding of equidistant synchronous generator
  • Proper faction groove sinusoidal winding of equidistant synchronous generator

Examples

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Embodiment Construction

[0014] An equidistant synchronous generator winding, the embodiment is a 30KW, phase voltage 115V, 400Hz, three-phase four-wire system, 3000r / min intermediate frequency brushless generator, AC and DC mixed power supply for aircraft ground power supply. The outer diameter of the stator core is Φ300mm, the number of slots is 36, and the number of poles is 16 poles. Each pole and each phase q=3 / 4. The circle is 3 turns, and the number of parallel branches a=2. The above-mentioned coil composition is such that each phase winding is composed of two kinds of coil turns, the turn ratio is 2:3, and the slot span is 1-4, that is, the slot pitch is 3, forming a continuous winding without joints. Connect the next three-phase symmetrical double-stack winding, which is a double-layer winding.

[0015] The number of parallel branches of the motor above is a=2 (according to different voltage levels, if the phase voltage is 230V, a=1), when it is used as an intermediate frequency AC power su...

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PUM

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Abstract

This invention discloses a proper fractional slot sine winding of an equal-distance synchronous generator. When each phase slot number of each pole q<1, the winding can continuously wind down to form double winding by laying out the winding with different turn ratios and same pitch coils, its technology is simpler than that of unequal turn concentric sine winding and makes its phase voltage wave be of high-degree sine and its phase voltage wave high-degree sine and its harmonic wave is lower than the sine windings of unequal turn concentric double layer low harmonic magnetic potential, easy to be made into precision high-level medium frequency AC power source, meeting the need of devices with high electric performance.

Description

technical field [0001] The invention relates to a power supply device, in particular to a winding of an equidistant synchronous generator. Background technique [0002] Due to the limited volume of general multi-pole synchronous generators, the number of slots q per pole and phase often takes a fraction. However, in intermediate frequency generators, q may often take a fraction less than 1. For example, the number of slots per pole and phase q=3 / 4 is less than 1, which is a true fraction slot. The q=3 / 4 true fractional slot winding is an equal-turn double-layer short-pitch winding according to the traditional structure, but this kind of winding cannot make the waveform distortion rate of the line voltage and phase voltage less than 2%. However, the waveform distortion rate of line voltage and phase voltage is less than 2%, which is the technical requirement of high-quality sine wave power supply. Contents of the invention [0003] The object of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/12
Inventor 林政安
Owner TELLHOW SCI TECH CO LTD