Parallel Computation for Finite Element Method in Dynamic Characteristics of AC Contactor Based on Transmission Line Method

YANG Wenying; PAN Yuhang; BAO Jiaxuan

doi:10.13334/j.0258-8013.pcsee.241601

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Parallel Computation for Finite Element Method in Dynamic Characteristics of AC Contactor Based on Transmission Line Method

更新时间：2026-10-12

- Parallel Computation for Finite Element Method in Dynamic Characteristics of AC Contactor Based on Transmission Line Method
- Vol. 45, Issue 18, Pages: 7348-7358(2025)
- 作者机构：
  
  哈尔滨工业大学电器与电子可靠性研究所,黑龙江省,哈尔滨市,150001
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.241601
  CLC：
- Published：2025
- 稿件说明：
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YANG Wenying, PAN Yuhang, BAO Jiaxuan. Parallel Computation for Finite Element Method in Dynamic Characteristics of AC Contactor Based on Transmission Line Method[J]. 2025, 45(18): 7348-7358.
DOI：

YANG Wenying, PAN Yuhang, BAO Jiaxuan. Parallel Computation for Finite Element Method in Dynamic Characteristics of AC Contactor Based on Transmission Line Method[J]. 2025, 45(18): 7348-7358. DOI： 10.13334/j.0258-8013.pcsee.241601.

摘要

动态特性评估对于交流接触器的可靠性和优化设计至关重要，数字样机模型与实验测量相结合的方法为评估动态特性提供了新方案。然而，现有商用有限元软件在求解数字样机模型时存在耗时长、收敛性差等诸多问题。对此，该文提出一种基于传输线法的交流接触器动态特性有限元并行计算方法，可实现交流接触器动态特性的加速求解。首先，利用有限元法和场路耦合建立交流接触器电磁-力耦合的数字样机模型。然后，基于传输线法将有限元模型的三角形单元等效成电路模型和传输线模型，从而将非线性问题解耦为线性网络和非线性网络。非线性网络等效成多个独立的电路，可以进行单元的大规模并行计算。通过与商用有限元软件COMSOL Multiphysics®以及实验测量结果进行对比，验证了传输线法在交流接触器动态特性计算方面的准确性。与COMSOL Multiphysics®求解动态特性的时间相比，传输线法的计算速度比COMSOL Multiphysics®提升了2.46倍。

Abstract

The evaluation of dynamic characteristics is crucial for the reliability and optimal design of AC contactors

and the combination of digital prototype models and experimental measurements provides a novel approach to evaluating dynamic characteristics. However

the existing commercial finite element software has many problems

such as long time consumption and poor convergence when solving the digital prototype model. In response

a parallel finite element computation method for the dynamic characteristics of AC contactors based on the transmission line method (TLM) is presented in this paper to realize the accelerated solution of the dynamic characteristics of AC contactors. The method first utilizes the finite element method (FEM) and field-circuit coupling to establish a digital prototype model of electromagnetic-force coupling of AC contactors. Then

the triangular elements of the FEM model are equivalent to circuit models and transmission line models based on the TLM

and this method effectively decouples the nonlinear problems into linear networks and nonlinear networks. The nonlinear networks are equivalent to multiple independent circuits

allowing massively parallel computation of elements. The accuracy of the TLM in the calculation of the dynamic characteristics of the AC contactor is verified by comparing the results with the commercial FEM software COMSOL Multiphysics® and experimentally measured. Compared to the solving time of the dynamic characteristics with COMSOL Multiphysics®

the TLM is 2.46 times faster than COMSOL Multiphysics®.

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