Self-excitation generator multiphase excitation device

A technology of excitation device and generator, applied in synchronous generator, controlling the shape/pattern/structure of the generator and winding conductor through magnetic field changes, can solve problems such as broken waveform, failure of electronic load to work, distortion, etc., to achieve performance good effect

Active Publication Date: 2007-12-05
TELLHOW SCI TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The output voltage waveform will produce burrs, dents, breaks, etc., which wil

Method used

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  • Self-excitation generator multiphase excitation device

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Embodiment Construction

[0008] As shown in Figure 1, the number of stator slots Z=24 in the expanded view, the number of poles 2P=2 poles, and the number of phases m=3 phases. Among them, U, V, W, and N are three-phase four-wire output armature windings, which are concentric single-layer and double-layer windings. The coil span of 1-12 is a single layer, and the coil span of 2-11 is a double layer. The number of single-layer turns is 1.73 times that of double-layer turns, so that the fundamental wave winding coefficient reaches 0.92, and the 5th and 7th harmonics are basically zero. This forms a low harmonic magnetomotive winding. The star output has a nice sinusoidal voltage waveform. Among them, 12 slots 24, 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, etc. are single-layer windings, and the remaining 12 slots are double-layer windings. There are AO and A in the four slots 24, 1, 12, and 13 1 O two-phase symmetrical winding, as a two-phase excitation winding, Figure 1 only draws UN U One-phase arrang...

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Abstract

The invention is a self-excited generator's multiphase exciter, characterized in that: primary winding of the generator is designed into concentric single-double layer winding of low-harmonic magnetometive force, base wave winding coefficient is high, and the 5th and 7th harmonics are largely weakened or eliminated, therefore the power generating efficiency is high and the voltage has good sine property. And it overcomes the interference phenomenon caused by obtaining excitation source from generator end or base wave auxiliary winding, and it is a self-exciter without interference to output power.

Description

technical field [0001] The invention relates to an excitation device for a self-excited generator, in particular to a multi-phase excitation device for a self-excited generator. Background technique [0002] In the past excitation devices of self-excited generators, the excitation source is drawn from the output end of the generator or from the additional fundamental wave auxiliary winding of the generator. When such an excitation source uses an electronic voltage regulator to adjust the excitation current, the output power of the generator is often disturbed. The output voltage waveform will produce burrs, dents, breaks, etc., which will distort the waveform, and in severe cases, the electronic load will not work. For this reason, seeking an excitation source of a self-excited generator without interference can change the above-mentioned defects. Contents of the invention [0003] The purpose of the present invention is to provide a self-excited generator multi-phase ex...

Claims

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Application Information

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IPC IPC(8): H02K19/26H02K3/12H02P9/14
Inventor 林政安
Owner TELLHOW SCI TECH CO LTD
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