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首页> 外文期刊>Magnetics, IEEE Transactions on >Analysis of Voltage Distribution Characteristics in UHVDC Converter Transformer Winding Based on the Reduced-Scale Model
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Analysis of Voltage Distribution Characteristics in UHVDC Converter Transformer Winding Based on the Reduced-Scale Model

机译：基于缩尺模型的特高压直流换流变压器绕组电压分布特性分析

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摘要

Based on the similarity theory, a reduced-scale model is proposed to study the voltage distribution characteristics in ultrahigh-voltage direct current converter transformer windings under the impulse voltage. Through comparing the distribution characteristics of electric field intensity and magnetic flux intensity of the scale model with that of the original model, the effectiveness of the reduced-scale method is verified. Furthermore, the actual production design is also considered in the model. The matrices of the inductance, capacitance, and resistance parameters for the reduced-scale model are obtained by finite element method. Then, the multi-conductor transmission line model is set up to study the propagation process of impulse voltage along the windings of the converter transformer. The voltage distribution curve is obtained under a standard lighting impulse voltage and the turn-to-turn fault is taken into consideration as well. The simulation results are the basis for the following experimental study.
机译：基于相似理论，提出了一种缩小模型，用于研究超高压直流换流变压器在冲击电压下的电压分布特性。通过将比例模型与原始模型的电场强度和磁通强度的分布特征进行比较，验证了缩小比例方法的有效性。此外，模型中还考虑了实际的生产设计。缩小模型的电感，电容和电阻参数矩阵是通过有限元方法获得的。然后，建立多导体传输线模型以研究脉冲电压沿换流变压器绕组的传播过程。在标准的照明脉冲电压下获得电压分布曲线，并且还考虑了匝间故障。仿真结果是后续实验研究的基础。

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