干式并联电抗器电磁振动与噪声

Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.干式并联电抗器的电磁振动与噪声

Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.1干式并联电抗器简介本质是大电感并联在电网中，以提供感性电流用环氧树脂做绝缘材料Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.2返回研究思路结构模型——研究电抗器结构的振动特性零部件部分装配体完全装配体电磁场模型——研究引起电抗器振动的电磁力振动噪声模型——研究电抗器的电磁振动和噪声机理不考虑磁场与结构的耦合提出减振降噪方案——动力吸振器、提高结构刚度Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.3返回干抗零部件模态分析-上铁轭干抗零部件模态分析Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.4模态阶数测量结果

(Hz)计算结果

(Hz)相对误差

(%)1248245.6-0.972576514.4-10.693760722.2-4.9741060955.6-9.85512441172.4-5.76618441823.0-10-2.95831373127.0-0.32表-1上铁轭固有频率的测量结果与计算结果干抗零部件模态分析-上铁轭Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.5干抗零部件模态分析-铁心柱Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.6干抗零部件模态分析-铁心柱Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.7模态阶数测量结果

(Hz)计算结果

(Hz)相对误差

(%)1404420.03.962896--3936941.70.6149781066.29.02515011520.21.28619802068.84.48722552125.4-5.75干抗零部件模态分析-铁心柱Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.8干抗零部件模态分析-线圈Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.9干抗零部件模态分析-线圈Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.10模态阶数测量结果

(Hz)计算结果

(Hz)相对误差

(%)1127124.6-1.92171183.97.53-274.1-4301314.94.65386396.62.76-421.3-7475465.4-2.0干抗零部件模态分析-线圈Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.11不完全装配体模态分析Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.12铁轭心柱不完全装配体模态分析-Y、Z方向Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.13不完全装配体模态分析-Y、Z方向Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.14不完全装配体模态分析-Y、Z方向Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.15模态阶数测量结果

(Hz)计算结果

(Hz)相对误差

(%)15956.6(Mode1)-4.129987.8(Mode2)-11.33-96.6(Mode3)-4120115.2(Mode4)-4.05130133.2(Mode5)2.56142--7158--8173184.8(Mode6)6.89184193.5(Mode7)5.210194198.2(Mode8)2.211226211.0(Mode9)-6.612-236.4(Mode10)-13247237.0(Mode11)-4.014309289.0(Mode12)-6.515533--16676--完全装配体模态分析Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.16电磁场模型Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.17洛伦兹力麦克斯韦尔力磁致伸缩力麦克斯韦尔力（分布于体表）磁致伸缩力（分布于体内）电磁场模型-电抗器磁场Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.18洛伦兹力Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.19麦克斯韦尔力Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.20磁致伸缩力Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.21测量上\下铁轭振动-100HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.22上铁轭振动测量结果计算上\下铁轭振动-100HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.23上铁轭振动测量结果上、下铁轭振动计算结果测量外线圈的振动-100HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.24线圈底部、线圈中部测量外线圈的振动-100HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.25Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.25位移：μm频率：100HzB相线圈振幅比C线圈高一个数量级线圈中部振动小计算外线圈的振动-100HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.26Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.26附加动力吸振器后上、下铁轭振动-100HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.27Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.27减振降噪方案2：新型压梁Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.28左、右压梁同时压紧在A、B心柱与B、C心柱上右压梁左压梁电抗器的声功率-测点布置Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.29电抗器的平均声压-频率分布特性Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.30辐射声能集中在：100Hz，200Hz，500Hz频率处，100Hz处的声功率为72dB(A)噪声源定位-实验方案Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.3124行×30列可测720个网格噪声源定位-实验现场Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.32使用B&K声强探头，IntensityMapping法识别噪声源，分析频率100Hz~500Hz

噪声源定位-100HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.33实际完成区域板车支撑面外线圈上铁轭噪声源定位-100Hz-东华测试Copyright©SieyuanElectricCo.,Ltd.AllRightsReserved.34噪声源定位-200HzCopyright©SieyuanElectricCo.,Ltd.AllRightsReserved.35B相线圈与B相铁心柱的空隙中向空中和地面辐射噪声仿真计算分离噪声源