Multi-phase transformer and rectifier system

A transformer, three-phase voltage technology, applied in the field of transformers

Pending Publication Date: 2021-05-18
东莞南方半导体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a multi-phase transformer and rectifier system for many problems in the use of traditional power frequency AC-DC rectification methods

Method used

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  • Multi-phase transformer and rectifier system

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described more comprehensively through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0030] In one example, see figure 1 , providing a multi-phase transformer, including a first iron core leg 21, a second iron core leg 22 and a third iron core leg 23, on the first iron core leg 21, the second iron core leg 22 and the third iron core leg 23 Each is provided with a first winding, a second winding, a third winding, a fourth winding, a fifth winding and a sixth winding. see figure 2 , the first end of the first winding 311 on the first core leg 21 is connected to the first end of the fourth winding 324 on the second core leg 22, and the first end of the ...

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Abstract

The invention relates to a multi-phase transformer and a rectifier system. The multi-phase transformer comprises a first iron core column, a second iron core column and a third iron core column, the first iron core column, the second iron core column and the third iron core column are each provided with a first winding, a second winding, a third winding, a fourth winding, a fifth winding and a sixth winding, and specific winding design and structural layout are adopted, so that the transformer is provided with three input ends. By adopting specific winding design and structural layout, the transformer is provided with three input ends and nine output ends, and an input three-phase line voltage can be converted into three groups of three-phase phase voltages to jointly form nine-phase line voltage output, so that nine-phase power frequency AC-DC rectification is realized, the power factor is improved, the total harmonic content of input current is reduced, the overall working performance of the transformer is improved, and the reactive compensation and harmonic treatment cost is reduced; and the multi-phase transformer has a voltage reduction function, the voltage of the output end can be smaller than that of the input end, the application requirements of direct low-voltage power frequency AC-DC rectification of a low-voltage frequency converter and the like can be met, the use cost is low, and the reliability is high.

Description

technical field [0001] The present application relates to the technical field of transformers, in particular to a multi-phase transformer and rectifier system. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components include coils and iron cores. The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. Multi-phase auto-coupling phase-shifting rectifier transformer is a kind of transformer. It is the core component to realize power frequency AC-DC rectification. It is widely used in medium and high-power inverter systems. It has strong adaptability to mains power supply environment and resistance to load impact. Strong ability and high reliability. [0003] The traditional power frequency AC-DC rectification adopts "3-phase 6-pulse" power frequency AC-DC rectification, and its core component uses a three-phase transfo...

Claims

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Application Information

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IPC IPC(8): H01F30/14H01F30/02H01F27/30H02M5/14H02M7/04H02M7/06
CPCH01F30/14H01F30/02H01F27/306H02M5/14H02M7/04H02M7/066H02M7/068
Inventor 张胜发李锡光徐海波李绍辉孔铭乔良李坚庆阳志超张诗娟
Owner 东莞南方半导体科技有限公司
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