干式并聯(lián)電抗器電磁振動與噪聲

Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.干式并聯(lián)電抗器的電磁振動與噪聲

Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.1干式并聯(lián)電抗器簡介本質是大電感并聯(lián)在電網中，以提供感性電流用環(huán)氧樹脂做絕緣材料Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.2返回研究思路結構模型——研究電抗器結構的振動特性零部件部分裝配體完全裝配體電磁場模型——研究引起電抗器振動的電磁力振動噪聲模型——研究電抗器的電磁振動和噪聲機理不考慮磁場與結構的耦合提出減振降噪方案——動力吸振器、提高結構剛度Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.3返回干抗零部件模態(tài)分析-上鐵軛干抗零部件模態(tài)分析Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.4模態(tài)階數(shù)測量結果

(Hz)計算結果

(Hz)相對誤差

(%)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上鐵軛固有頻率的測量結果與計算結果干抗零部件模態(tài)分析-上鐵軛Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.5干抗零部件模態(tài)分析-鐵心柱Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.6干抗零部件模態(tài)分析-鐵心柱Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.7模態(tài)階數(shù)測量結果

(Hz)計算結果

(Hz)相對誤差

(%)1404420.03.962896--3936941.70.6149781066.29.02515011520.21.28619802068.84.48722552125.4-5.75干抗零部件模態(tài)分析-鐵心柱Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.8干抗零部件模態(tài)分析-線圈Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.9干抗零部件模態(tài)分析-線圈Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.10模態(tài)階數(shù)測量結果

(Hz)計算結果

(Hz)相對誤差

(%)1127124.6-1.92171183.97.53-274.1-4301314.94.65386396.62.76-421.3-7475465.4-2.0干抗零部件模態(tài)分析-線圈Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.11不完全裝配體模態(tài)分析Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.12鐵軛心柱不完全裝配體模態(tài)分析-Y、Z方向Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.13不完全裝配體模態(tài)分析-Y、Z方向Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.14不完全裝配體模態(tài)分析-Y、Z方向Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.15模態(tài)階數(shù)測量結果

(Hz)計算結果

(Hz)相對誤差

(%)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--完全裝配體模態(tài)分析Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.16電磁場模型Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.17洛倫茲力麥克斯韋爾力磁致伸縮力麥克斯韋爾力（分布于體表）磁致伸縮力（分布于體內）電磁場模型-電抗器磁場Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.18洛倫茲力Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.19麥克斯韋爾力Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.20磁致伸縮力Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.21測量上\下鐵軛振動-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.22上鐵軛振動測量結果計算上\下鐵軛振動-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.23上鐵軛振動測量結果上、下鐵軛振動計算結果測量外線圈的振動-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.24線圈底部、線圈中部測量外線圈的振動-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.25Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.25位移：μm頻率：100HzB相線圈振幅比C線圈高一個數(shù)量級線圈中部振動小計算外線圈的振動-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.26Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.26附加動力吸振器后上、下鐵軛振動-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.27Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.27減振降噪方案2：新型壓梁Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.28左、右壓梁同時壓緊在A、B心柱與B、C心柱上右壓梁左壓梁電抗器的聲功率-測點布置Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.29電抗器的平均聲壓-頻率分布特性Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.30輻射聲能集中在：100Hz，200Hz，500Hz頻率處，100Hz處的聲功率為72dB(A)噪聲源定位-實驗方案Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.3124行×30列可測720個網格噪聲源定位-實驗現(xiàn)場Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.32使用B&K聲強探頭，IntensityMapping法識別噪聲源，分析頻率100Hz~500Hz

噪聲源定位-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.33實際完成區(qū)域板車支撐面外線圈上鐵軛噪聲源定位-100Hz-東華測試Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.34噪聲源定位-200HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.35B相線圈與B相鐵心柱的空隙中向空中和地面輻射噪聲仿真計算分離噪聲源