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Magnetic integrated hybrid distribution transformer adopting current source type converter

A distribution transformer and current source technology, applied in the field of transformers, can solve the problems of excessive number of separated magnetic components and low reliability of hybrid distribution transformers, etc., to achieve reduced production costs, high reliability, and improved utilization Effect

Active Publication Date: 2021-05-14
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a magnetically integrated hybrid distribution transformer using a current source type converter to solve the problem of using a current source type converter to separate the number of magnetic components too much in the prior art. Problems of Low Reliability of Hybrid Distribution Transformer

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  • Magnetic integrated hybrid distribution transformer adopting current source type converter
  • Magnetic integrated hybrid distribution transformer adopting current source type converter

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Embodiment Construction

[0026] The present invention is described in further detail below in conjunction with accompanying drawing:

[0027] In the description of the present invention, it should be noted that the terms "core", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Orientation configuration and operation, therefore, should not be construed as limiting the present invention; the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance; in addition, unless otherwise There are clear stipulations and limitations, and th...

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Abstract

The invention discloses a magnetic integrated hybrid distribution transformer adopting a current source type converter. The magnetic integrated hybrid distribution transformer comprises a current source type converter unit, a main transformer and an isolation transformer; the current source type converter unit is composed of a control bridge arm and a direct current bus inductor. An iron core consists of an iron yoke, a leakage magnetic iron core and an iron core column wound with a winding; the converter direct-current bus inductor comprises inductor sub-windings which are distributed on the iron core column and are split in equal turns and wound in the reverse direction. Each iron core column is provided with two sections of sub-windings which are connected in series reversely to form a group of inductors, and then the groups of inductors are connected in series reversely to form a complete converter bus inductor. And magnetic decoupling between a converter bus inductor and a transformer winding is realized.

Description

【Technical field】 [0001] The invention belongs to the technical field of transformers, in particular to a magnetically integrated hybrid distribution transformer using a current source converter. 【Background technique】 [0002] Hybrid distribution transformer is a new type of distribution transformer. It improves the design of traditional distribution transformers by combining power electronic devices, so that it not only has the advantages of high efficiency and reliability of traditional distribution transformers, but also greatly improves the controllability of distribution transformers, so it is very suitable for future distribution networks Intelligent development needs. [0003] Most of the converters of the current hybrid distribution transformers use voltage source converters. However, the voltage-type converter contains a large DC bus capacitor, which has low reliability, low energy density, short life and is easy to be damaged; in addition, the large volume of th...

Claims

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Application Information

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IPC IPC(8): H02M5/10H02M5/458H01F27/30H01F27/28H01F27/24
CPCH02M5/10H02M5/4585H01F27/306H01F27/28H01F27/24
Inventor 王宇珩梁得亮高亚晨柳轶彬
Owner XI AN JIAOTONG UNIV