A Dynamic Nonlinear Model for Metal-Oxide Varistor Considering the Energy Absorption Excited by Wide-Range Transients

IF 3.7 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Power Delivery Pub Date : 2025-06-12 DOI:10.1109/TPWRD.2025.3579255

Yu-ying Wu;Yan-zhao Xie;Ning Dong;Fu-zheng Tian

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Abstract

The dynamic models of the metal-oxide varistors (MOV) have been developed successively and they show good performances in the prediction of the residual voltage. However, energy absorption, one of the most important electrical characteristics of MOV, is also worth studying, because it is a non-negligible factor to evaluate the accuracy of the model. This paper proposes a dynamic nonlinear model for MOV considering the residual voltage and the energy absorption under wide-range transients with the rise time ranging from 20 ns to 30 μs. During modeling, the characteristics of the propose model including the capacitance, the inductance and the nonlinear resistance are studied first. Then the electrical circuit is developed in ATP-EMTP. The performance of the proposed model is analyzed and compared with the IEEE model. The results indicate that the proposed model is accurate and reliable in calculating both the residual voltage and the energy, and the maximum relative errors of the residual voltage and the energy are 5.74% and 5.29%, respectively.

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考虑大范围瞬变激发能量吸收的金属氧化物压敏电阻动态非线性模型

金属氧化物压敏电阻（MOV）的动态模型已陆续建立，在剩余电压预测方面表现出良好的性能。然而，能量吸收作为MOV最重要的电特性之一，也是值得研究的，因为它是评估模型准确性的一个不可忽视的因素。在上升时间为20 ~ 30 μs的大范围瞬态下，考虑剩余电压和能量吸收，建立了MOV的动态非线性模型。在建模过程中，首先研究了该模型的电容、电感和非线性电阻等特性。然后在ATP-EMTP中开发了电路。分析了该模型的性能，并与IEEE模型进行了比较。结果表明，该模型计算剩余电压和能量均准确可靠，剩余电压和能量的最大相对误差分别为5.74%和5.29%。

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来源期刊

IEEE Transactions on Power Delivery 工程技术-工程：电子与电气

CiteScore

9.00

自引率

13.60%

发文量

513

审稿时长

6 months

期刊介绍： The scope of the Society embraces planning, research, development, design, application, construction, installation and operation of apparatus, equipment, structures, materials and systems for the safe, reliable and economic generation, transmission, distribution, conversion, measurement and control of electric energy. It includes the developing of engineering standards, the providing of information and instruction to the public and to legislators, as well as technical scientific, literary, educational and other activities that contribute to the electric power discipline or utilize the techniques or products within this discipline.