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(zhì)是大電感并聯(lián)在電網(wǎng)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(jié)構(gòu)模型——研究電抗器結(jié)構(gòu)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(jī)理不考慮磁場與結(jié)構(gòu)的耦合提出減振降噪方案——動力吸振器、提高結(jié)構(gòu)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(jié)果

(Hz)計(jì)算結(jié)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(jié)果與計(jì)算結(jié)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(jié)果

(Hz)計(jì)算結(jié)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(jié)果

(Hz)計(jì)算結(jié)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(jié)果

(Hz)計(jì)算結(jié)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(nèi)）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(jié)果計(jì)算上\下鐵軛振動-100HzCopyright?SieyuanElectricCo.,Ltd.AllRightsReserved.23上鐵軛振動測量結(jié)果上、下鐵軛振動計(jì)算結(jié)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(jì)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(shí)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(diǎn)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(shí)驗(yàn)方案Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.3124行×30列可測720個網(wǎng)格噪聲源定位-實(shí)驗(yàn)現(xiàn)場Copyright?SieyuanElectricCo.,Ltd.AllRightsReserved.32使用B&K聲強(qiáng)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(shí)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(jì)算分離噪聲源