Ferroresonance Simulation with Nonlinear Resistance Modeling for Transformer Power Losses

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Ferroresonance Simulation with Nonlinear Resistance Modeling for Transformer Power Losses

更新时间：2025-07-09

- Ferroresonance Simulation with Nonlinear Resistance Modeling for Transformer Power Losses
- Vol. 43, Issue 10, Pages: 109-113(2009)
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM864
- Online First：10 October 2009，
  
  Published：2009
- 稿件说明：
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Ferroresonance Simulation with Nonlinear Resistance Modeling for Transformer Power Losses[J]. 2009, 43(10): 109-113.
DOI：

Ferroresonance Simulation with Nonlinear Resistance Modeling for Transformer Power Losses[J]. 2009, 43(10): 109-113. DOI：

摘要

针对变压器、电磁式电压互感器(PT)等非线性电感元件在铁磁谐振研究中的重要性

建立了一种同时考虑变压器电感及损耗非线性的计算模型

利用非线性电感和电阻的并联来模拟变压器

并给出了由变压器空载实验测得的电压、电流有效值和损耗值计算得到非线性电感磁通电流曲线和非线性电阻伏安曲线的方法.将该模型应用于铁磁谐振过电压的仿真计算中

并与实验测得的结果进行比较.结果表明:利用非线性电阻模拟变压器损耗进行铁磁谐振的仿真计算

所得到的变压器电压和回路电流的峰值与实验结果的误差分别为3.81%和0.2%

远低于利用定值电阻模拟变压器损耗时的误差19.5%和15.9%

表明该模型应用于铁磁谐振的计算时所得结果更加精确.

Abstract

A calculating model considering nonlinearity of both the transformer inductance and the losses is presented

where the simulated transformer is by nonlinear inductance and resistance in parallel. The calculating method for the characteristic curves of the nonlinear inductance and resistance with the data of voltage

current and power losses measured in no-load test is proposed to simulate and evaluate the ferroresonance overvoltage

and the experiments are accomplished to verify the accuracy. The results show that the error between simulation and experiment approaches 3.81% and 0.2% respectively for the peak value of transformer voltage and circuit current by nonlinear resistance model

far lower than 19.5% and 15.9% by constant resistance model.

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Keywords

references

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