Design of On-load Split-phase Voltage Regulation System via Thyristor for Distribution Transformer

GU Suwen; MA Hongzhong; WANG Huafang; XU Honghua; XIA Dongsheng

doi:10.13296/j.1001-1609.hva.2018.06.022

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Design of On-load Split-phase Voltage Regulation System via Thyristor for Distribution Transformer

更新时间：2025-04-26

- Design of On-load Split-phase Voltage Regulation System via Thyristor for Distribution Transformer
- High VoltageApparatus Vol. 54, Issue 6, Pages: 144-149(2018)
- 作者机构：
  
  1. 河海大学能源与电气学院
  2. 国网江苏省电力公司南京供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.06.022
  CLC： TM41
- Published：2018
- 稿件说明：
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[1]顾苏雯,马宏忠,王华芳,许洪华,夏东升.基于晶闸管的配电变压器有载分相调压系统设计[J].高压电器,2018,54(06):144-149.

GU Suwen, MA Hongzhong, WANG Huafang, et al. Design of On-load Split-phase Voltage Regulation System via Thyristor for Distribution Transformer[J]. High voltageapparatus, 2018, 54(6): 144-149.
[1]顾苏雯,马宏忠,王华芳,许洪华,夏东升.基于晶闸管的配电变压器有载分相调压系统设计[J].高压电器,2018,54(06):144-149. DOI： 10.13296/j.1001-1609.hva.2018.06.022.

GU Suwen, MA Hongzhong, WANG Huafang, et al. Design of On-load Split-phase Voltage Regulation System via Thyristor for Distribution Transformer[J]. High voltageapparatus, 2018, 54(6): 144-149. DOI： 10.13296/j.1001-1609.hva.2018.06.022.

摘要

为解决由配电变压器不对称运行所引起的低压侧电压偏移的问题

提出了一种基于晶闸管的配电变压器有载分相调压系统设计方案。该系统应用无触点开关晶闸管作为有载分接开关

根据监测到的低压侧各相电压的波动

控制高压侧分接头的切换

在有载的情况下自动调节配电变压器各相输出电压。应用MATLAB搭建仿真模型

针对三相负荷不平衡的情况进行分相调压的仿真分析

结果验证了方案的可行性。研制了系统样机

并对样机进行了现场模拟测试。结果与现有的调压机构相比

所设计系统可以均衡配电网三相电压且过渡波形质量高。

Abstract

Unbalanced operation of distribution transformer may cause voltage deviation on its low-voltage side.To solve this problem

an on-load split-phase voltage regulation system via thyristor was designed for distribution transformer. In this design

thyristor

a contactless switch

was used as on-load tap-changer. The tap-changer on the high-voltage side can be switched according to voltage fluctuation of each phase monitored on the low-voltage side. The output voltage of each phase can be automatically adjusted under load conditions. The software MATLAB was employed to establish a model for simulating the split-phase voltage regulation in unbalanced condition of three-phase loads

and the results verified the feasibility of the regulation scheme. A prototype of the system was developed and tested

and the results show that the designed system can balance three-phase voltage of distribution network with better transition waveform compared with the existing voltage regulation mechanism.

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