Study on Propagation Law of Voltage Sags Through Multiple Grade Transformers

LUO Shanshan; DU Xiaotong; ZHANG Jun; SUN Haotian; CHEN Bing; YI Hao; ZHUO Fang; WANG Xinxiang; LI Yongheng

doi:10.14044/j.1674-1757.pcrpc.2019.05.029

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Study on Propagation Law of Voltage Sags Through Multiple Grade Transformers

更新时间：2024-09-14

- Study on Propagation Law of Voltage Sags Through Multiple Grade Transformers
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 5, Pages: 170-175(2019)
- 作者机构：
  
  1. 国网江苏省电力有限公司电力科学研究院
  2. 西安交通大学
  3. 国网江苏省电力有限公司
  4. 南京国臣信息自动化技术有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.05.029
  CLC： TM40;TM714.2
- Published：2019，
- 稿件说明：
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[1]罗珊珊,杜晓彤,张军,孙浩天,陈兵,易皓,卓放,王新想,李永恒.电压暂降通过多级变压器的传播规律研究[J].电力电容器与无功补偿,2019,40(05):170-175.

LUO SHANSHAN, DU XIAOTONG, ZHANG JUN, et al. Study on Propagation Law of Voltage Sags Through Multiple Grade Transformers. [J]. Power capacitor & reactive power compensation, 2019, 40(5): 170-175.
[1]罗珊珊,杜晓彤,张军,孙浩天,陈兵,易皓,卓放,王新想,李永恒.电压暂降通过多级变压器的传播规律研究[J].电力电容器与无功补偿,2019,40(05):170-175. DOI： 10.14044/j.1674-1757.pcrpc.2019.05.029.

LUO SHANSHAN, DU XIAOTONG, ZHANG JUN, et al. Study on Propagation Law of Voltage Sags Through Multiple Grade Transformers. [J]. Power capacitor & reactive power compensation, 2019, 40(5): 170-175. DOI： 10.14044/j.1674-1757.pcrpc.2019.05.029.

摘要

本文根据电压暂降通过单个变压器的传播特性

推演得出了不同电压暂降类型在电网中经过多级任意类变压器的传播规律

并根据电压暂降经过不同变压器后的类型变化

推导得出了电压暂降在变压器两侧幅值简洁的变化关系。文章通过仿真对上述规律和关系进行了验证

所得结论将在判断电压暂降严重性、对负荷侧的影响、以及故障源追溯定位中发挥重要作用。

Abstract

In this paper

the propagation law through multiple grade transformers in the power grid is obtained by the deduction in accordance with the voltage sag propagation through single transformer.The simple variation relations of voltage sag of amplitude on both sides of transformer is deducted in accordance with type variation of voltage sag passing through different transformers.The above rule and relation are verified by the simulation in this paper and the conclusion plays an important role in judging the severity of voltage sags and locating the fault sources.

关键词

电压暂降变压器传播特性

Keywords

voltage sagtransformerpropagation characteristics

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