Multiphase autotransformer and rectifier system

An autotransformer, 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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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • Multiphase autotransformer and rectifier system
  • Multiphase autotransformer and rectifier system
  • Multiphase autotransformer and rectifier system

Examples

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Embodiment Construction

[0029] In order to make the purpose, technical solution 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 , provide a multi-phase autotransformer, including the first core leg 21, the second core leg 22 and the third core leg 23, the first core leg 21, the second core leg 22 and the third core leg A first winding, a second winding, a third winding, a fourth winding, a fifth winding and a sixth winding are arranged on each column 23 . 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 first winding 321 o...

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Abstract

The invention relates to a multiphase autotransformer and a rectifier system. The multiphase autotransformer comprises a first iron core column, a second iron core column and a third iron core column, and 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. By adopting specific winding design and structural layout, an input three-phase line voltage can be converted into three groups of three-phase phase voltages, nine-phase line voltage output is jointly formed among specific phase voltages, nine-phase power frequency AC-DC rectification is achieved, the power factor is improved, the total harmonic content of input current is reduced, the working performance of a transformer is improved, and additional reactive compensation and harmonic treatment cost is reduced; and particularly, the multiphase autotransformer is designed according to the boosting function, the voltage of the output end is larger than that of the input end, the application requirements of direct high-voltage power frequency AC-DC rectification of a high-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 autotransformer 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 tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F30/02H01F30/14H01F27/30H02M5/14H02M7/04H02M7/06
CPCH01F27/306H01F30/02H01F30/14H02M5/14H02M7/04H02M7/066H02M7/068
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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