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第 40 卷 第 3 期                                                                       Vol. 40, No. 3
             2021 年 5 月                          Journal of Applied Acoustics                      May, 2021

             ⋄ 研究报告 ⋄



                    散热片对变压器声辐射的影响及优化分析                                                             ∗





                          胡静竹      1†  王延召      1   邓银凤     2   黎 胜    2   周 兵     1   张建功     1


                                (1  中国电力科学研究院有限公司         电网环境保护国家重点实验室         武汉  430074)
                                            (2  大连理工大学船舶工程学院        大连   116024)
                摘要：油浸式配电变压器表面布有大量散热片结构，使得油箱振动声辐射变得复杂。该文研究了散热片结构
                对油浸式变压器辐射声场的影响，在此基础上提出了散热片结构尺寸的优化措施。建立了考虑流固耦合的变
                压器振动和声学分析模型，提出了散热片声场效应评判准则，基于模态分析和频响分析探讨了散热片对变压
                器振动声辐射影响的振动效应、声源效应和声障效应。实验数据和仿真分析结果表明，变压器散热片对变压器
                振动声辐射的影响不可忽视，尤其是声源效应。采用遗传算法对散热片分布和尺寸参数进行优化分析，计算结
                果表明，通过优化散热片可以有效降低变压器表面均方振速和辐射声功率，可为变压器噪声控制和优化提供
                依据。
                关键词：变压器散热片；声源效应；振动效应；声障效应；结构优化
                中图法分类号: TB532           文献标识码: A          文章编号: 1000-310X(2021)03-0480-09
                DOI: 10.11684/j.issn.1000-310X.2021.03.021


                           Acoustic effects and optimization of the transformer fins


               HU Jingzhu 1  WANG Yanzhao   1  DENG Yinfeng  2  LI Sheng 2  ZHOU Bing 1  ZHANG Jiangong   1

                    (1  State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute,
                                                    Wuhan 430074, China)
                            (2  School of Naval Architecture, Dalian University of Technology, Dalian 116024, China)

                 Abstract: The surface of the oil-immersed distribution transformer is covered with a large number of fins,
                 which makes the vibration and sound radiation of the oil tank complicated. In this paper, the influence of
                 heat sink structure on the radiated sound field of oil-immersed transformer is studied. On this basis, the
                 optimization measures of heat sink structure size are proposed. The vibration and acoustic analysis model
                 of the transformer considering fluid-structure coupling is established, and the criterion of sound field effect
                 of the heat sink is proposed. Based on the modal analysis and frequency response analysis, the vibration
                 effect, sound source effect and barrier effect of the heat sink on the transformer are analyzed. Experimental
                 data and simulation analysis results show that the influence of transformer heat sink on transformer vibration
                 sound radiation cannot be ignored, especially the effect of sound source. The genetic algorithm is used to
                 optimize and analyze the heat sink distribution and size parameters. The calculation results show that the
                 optimization of the heat sink can effectively reduce the mean square vibration speed and radiated sound power
                 of the transformer surface, which can provide a basis for transformer noise control and optimization.
                 Keywords: Transformer fins; Sound source effect; Vibration effect; Sound barrier effect; Structure optimization


             2020-08-17 收稿; 2020-12-06 定稿
             国家电网公司科技项目《油浸式电力变压器表面振动特性及声辐射效率研究》(GYW17201700345)
             ∗
             作者简介: 胡静竹 (1990– ), 女, 湖北武汉人, 硕士, 工程师, 研究方向: 电网噪声分析与控制研究。
             † 通信作者 E-mail: jzhu_5@163.com
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