多绕组电力变压器内部短路稳态分析:（一）建模与仿真

TANG Qichao; WANG Zanji; WANG Weijian

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多绕组电力变压器内部短路稳态分析:（一）建模与仿真

更新时间：2025-08-13

- 多绕组电力变压器内部短路稳态分析:（一）建模与仿真
- Automation of Electric Power Systems Vol. 30, Issue 10, (2006)
- 作者机构：
  
  清华大学电机系电力系统国家重点实验室,北京市,100084
- 作者简介：
- 基金信息：
- DOI：
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- Published：2006
- 稿件说明：
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TANG Qichao, WANG Zanji, WANG Weijian. [J]. Automation of electric power systems, 2006, 30(10).
DOI：

TANG Qichao, WANG Zanji, WANG Weijian. [J]. Automation of electric power systems, 2006, 30(10). DOI：

摘要

电力变压器线圈之间的耦合特性使其内部短路故障的外部特性具有复杂性。为了正确设计和整定变压器内部故障的继电保护方案，必须逐个地针对每种变压器内部短路故障分布情况找到外部故障特征。文中提出了一种分析电力变压器内部短路故障的电路模型和分析方法，并以一台双绕组变压器为例，对线圈内部对地短路、匝间短路、相间短路分别进行了仿真计算，给出了外特性随故障类型和故障位置变化的规律。

Abstract

The coupling between coils in power transformer causes the complexity of external characteristics of internal short circuit faults. In order to design and adjust the relay protection correctly

it is necessary to model and simulate the internal short circuits in details for different type of power transformers. An equivalent circuit model and an algorithm for modeling internal short circuits in power transformer windings are proposed. The several kinds of faults including short circuit to ground

inter-turn short circuits and inter-phase short circuits are simulated for a doublewinding power transformer and the external characteristics with the fault position variety are given.

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