In this paper, according to the parameters of the dry type air core smoothing reactor, the stress‐sound field and fluid‐temperature field coupling simulation model is established, the detailed temperature field and sound field distribution are obtained, and the influence law of sound arrester on the sound pressure level and temperature rise are analyzed. It can be found that the temperature rise of encapsulation coils are significantly increased when adding the sound arrester, and the reasons are given by analyzing the fluid velocity in the air ducts. Meanwhile, the optimization design method about sound arrester is proposed based on the orthogonal experiment design and finite element method. The influence curve and contribution rate of sound arrester on the pressure level and temperature rise are analyzed, and the optimal structural parameters of the sound arrester are obtained. The results show that the optimization method can significantly reduce the temperature rise and sound pressure level simultaneously, and improving the operational reliability of the smoothing reactor. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

中文翻译：

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基于多物理场耦合法的干式空芯平波堆声阻器优化设计

本文根据干式空芯平波电抗器的参数，建立了应力-声场与流-温场耦合仿真模型，得到了详细的温度场和声场分布，并对声波的影响规律进行了研究。对避雷器的声压级和温升进行了分析。可以发现，添加消音器时，封装线圈的温度升高明显增加，其原因是通过分析风管中的流体速度给出的。同时，基于正交试验设计和有限元方法，提出了一种消声器的优化设计方法。分析了消声器对压力水平和温升的影响曲线和贡献率，得到了避音器的最佳结构参数。结果表明，该优化方法可以同时显着降低温升和声压级，并提高了平滑反应器的运行可靠性。©2021日本电气工程师学会。由Wiley Periodicals LLC发布。