Research on Compact Three-phase Three-dimensional Magnetically Controlled Distribution Transformer

LIU Chunhui; FENG Xinwen; SU Xinyong; CHEN Haoran; CHEN Xinyue; CHEN Bochao

doi:10.13296/j.1001-1609.hva.2026.08.009

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Research on Compact Three-phase Three-dimensional Magnetically Controlled Distribution Transformer

Research & Analysis | 更新时间：2026-08-12

- Research on Compact Three-phase Three-dimensional Magnetically Controlled Distribution Transformer
- High Voltage Apparatus Vol. 62, Issue 8, Pages: 67-73(2026)
- 作者机构：
  
  国网内蒙古东部电力有限公司电力科学研究院，呼和浩特 010090
  国网内蒙古东部电力有限公司，呼和浩特 010013
  国网赤峰供电公司，内蒙古赤峰 024099
  武汉大学电气与自动化学院，武汉 430072
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.08.009
  CLC：
- Received：03 February 2026，
  
  Revised：2026-05-08，
  
  Published：16 August 2026
- 稿件说明：
移动端阅览
LIU Chunhui, FENG Xinwen, SU Xinyong, et al. Research on Compact Three-phase Three-dimensional Magnetically Controlled Distribution Transformer[J]. High Voltage Apparatus, 2026, 62(8): 67-73.
DOI：

LIU Chunhui, FENG Xinwen, SU Xinyong, et al. Research on Compact Three-phase Three-dimensional Magnetically Controlled Distribution Transformer[J]. High Voltage Apparatus, 2026, 62(8): 67-73. DOI： 10.13296/j.1001-1609.hva.2026.08.009.

摘要

针对电网长线路末端电压波动大且城市电网扩建困难的问题，提出了一种将可控电抗器与配电变压器相结合的紧凑型三相立体式磁控配电变压器，并通过理论推导与有限元仿真分析了其工作过程与优势。该紧凑型磁控配电变压器的铁心由3个完全相同的单框组成，每相绕组绕制在两个单框上，每个单框铁心的上下横扼部位都设有截面积较小的磁阀，每个带气隙的小截面铁扼上均绕有直流励磁绕组。理论分析与有限元仿真结果表明，该紧凑型磁控配电变压器在保留原有配电变压器占地面积的基础上，既可以输出无功、提高无功电压控制能力，也可以正常变压和传递电能，且电压电流波形无畸变、无不平衡现象，适用于有高比例新能源接入、电缆化率高且空间有限的城市配电站。

Abstract

In view of such issues as large voltage fluctuations at the end of long transmission lines and the difficulty of urban power grid expansion

a compact three-phase three dimensional maganetically controlled distribution transformer that combines a controllable reactor with a distribution transformer is proposed. Its working process and advantages are analyzed through theoretical derivation and finite element simulation. The iron core of this compact magnetically controlled distribution transformer consists of three identical single frames

with each phase winding wound on two single frames. Each single frame iron core has a magnetic valve with a smaller cross-sectional area at the upper and lower transverse yokes

and each small cross-sectional iron choke with an air gap is wound with a DC excitation winding. Both theoretical analysis and finite element simulation results show that the compact magnetically controlled distribution transformer

on the condition of maintaining footprint of original power distribution transformer

can not only output reactive power and improve the reactive power and voltage control ability

but also transform voltage and transfer electric energy normally without distortion and imbalance of voltage and current waveforms

which is suitable for urban distribution stations with high proportion of new energy access

high cable utilization rate with limited space.

关键词

Keywords

references

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