Study on the Mode of Surge Current Suppression in Transformer Turned into Parallel Operation

RAO Qiang; WANG Jing; ZHANG Yanyan; CHANG Qiankun; XU Mengjia; WANG Yuhong; WEI Liang; TANG Hua

doi:10.13296/j.1001-1609.hva.2017.07.021

您当前的位置：

首页 >

文章列表页 >

Study on the Mode of Surge Current Suppression in Transformer Turned into Parallel Operation

更新时间：2025-04-26

- Study on the Mode of Surge Current Suppression in Transformer Turned into Parallel Operation
- High VoltageApparatus Vol. 53, Issue 7, Pages: 130-135(2017)
- 作者机构：
  
  1. 国网北京市电力公司
  2. 四川大学电气信息学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.07.021
  CLC： TM41
- Published：2017
- 稿件说明：
移动端阅览
[1]饶强,王兢,张艳妍,常乾坤,徐梦佳,王渝红,魏亮,汤华.变压器分列转并列运行冲击电流抑制措施研究[J].高压电器,2017,53(07):130-135.

RAO Qiang, WANG Jing, ZHANG Yanyan, et al. Study on the Mode of Surge Current Suppression in Transformer Turned into Parallel Operation[J]. High voltageapparatus, 2017, 53(7): 130-135.
[1]饶强,王兢,张艳妍,常乾坤,徐梦佳,王渝红,魏亮,汤华.变压器分列转并列运行冲击电流抑制措施研究[J].高压电器,2017,53(07):130-135. DOI： 10.13296/j.1001-1609.hva.2017.07.021.

RAO Qiang, WANG Jing, ZHANG Yanyan, et al. Study on the Mode of Surge Current Suppression in Transformer Turned into Parallel Operation[J]. High voltageapparatus, 2017, 53(7): 130-135. DOI： 10.13296/j.1001-1609.hva.2017.07.021.

摘要

变压器分列转并列现象很常见

其产生的冲击电流可能会破坏变压器、开关等设备

对于配电网的安全稳定运行十分不利

因此提出了一种基于复合开关的冲击电流抑制措施。首先利用戴维宁等值定理建立数学模型

分析了变压器暂态过程冲击电流形成的原因及计算方法

并推导论证了冲击电流、等值阻抗角及电压源相位三者之间的函数关系;然后设计了基于过零检测电路的复合开关分相投切控制模块

并在MATLAB中仿真实验

验证了该方法在对称及不对称系统中均可实现变压器稳态并列;最后

利用傅里叶算法（FFT）分析复合开关分相投切策略在谐波上的影响。结果表明

该投入方式对系统的谐波影响较小。

Abstract

It’s very common for transformers of independent operation to turn into parallel operation

and its surge current may destroy transformers

switches and the other equipment. So this paper presents a new method for surge current suppression based on the composite switch. Firstly

utilizing Thevenin equivalence theorem

the mathematical model is established. Meanwhile by analyzing the cause and the calculation method of the surge current in the transient process of the transformers

the impulse current function model with the equivalent impedance angle and the voltage source phase in switching time is derived. Then

the control module of the composite switch is designed based on zero crossing detection circuit. Finally

by MATLAB simulation

it is verified that the transformers can turn into parallel operation steadily under symmetric and asymmetric conditions with the proposed method;And the effect on the harmonic of the composite switch is analyzed by FFT method

whose results show that the input mode has little influence on the harmonic of the system.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Theory and Design of Detecting Power System Harmonics on-line

Digitizing Detection of Resistive Current of MOA Based on Harmonic Analysis Method

NON-LINEAR POWER LOAD AND ITS INFLUENCE ON ELECTRICAL POWER SYSTEM

NEW APPROACH TO IDENTIFYING THE SINGLE-PHASE GROUNDING FAULT LINE FOR THE ISOLATED NEUTRAL DISTRIBUTION NETWORK

INFLUENCE OF HARMONIC COMPONENT ON THE CHOPPING CURRENT LEVEL OF VACUUM SWITCHGEAR

Related Author

唐湘华

何惧熊

徐耀伦

徐昌美

顾乐观

孙才新

胡志伟

廖瑞金

Related Institution

635000

达川电业局 400044

达川电业局

重庆大学

618000

⁰