本文選題：氣體絕緣開關(guān)設(shè)備 + 開關(guān)操作��； 參考：《高電壓技術(shù)》2015年05期

【摘要】：智能變電站多將保護(hù)和控制以及監(jiān)測等電子設(shè)備下放到匯控柜內(nèi),由于距離電磁騷擾源更近,使得這些電子設(shè)備的電磁兼容問題更加突出。為此,運(yùn)用自制的電磁瞬態(tài)測量系統(tǒng),對某500 kV氣體絕緣變電站調(diào)試期間隔離開關(guān)和斷路器操作在匯控柜電流互感器組件端口產(chǎn)生的騷擾電壓進(jìn)行了測量。測量結(jié)果顯示,氣體絕緣開關(guān)設(shè)備匯控柜內(nèi)智能組件端口共模騷擾電壓最大值為326.75 V,差模騷擾電壓最大值為189.84 V。并分析比較了隔離開關(guān)操作、斷路器合閘操作和斷路器分閘 合閘 閘操作時(shí)端口騷擾電壓的差異。斷路器操作時(shí)端口騷擾電壓有可觀的幅值水平,尤其是斷路器分閘 合閘 分閘操作時(shí)端口騷擾電壓在幅值、微脈沖持續(xù)時(shí)間和上升沿上較隔離開關(guān)操作時(shí)有更為嚴(yán)重的情況出現(xiàn)。最后,研究了IEC 61000-4-18阻尼振蕩波試驗(yàn)標(biāo)準(zhǔn)與實(shí)測波形的對應(yīng)情況。實(shí)測波形參數(shù)和標(biāo)準(zhǔn)波形參數(shù)略有差異,總體的對應(yīng)情況較好。實(shí)測端口的電磁騷擾水平低于IEC 61000-4-18標(biāo)準(zhǔn)的試驗(yàn)等級1。
[Abstract]:In intelligent substation, many electronic equipments, such as protection, control and monitoring, are transferred to the control cabinet, so the electromagnetic compatibility problem of these electronic devices is more prominent because of the closer distance from the electromagnetic disturbance source. For this reason, the disturbance voltage generated by the operation of the isolating switch and circuit breaker on the terminal of the current transformer module of the control cabinet is measured by using the self-made electromagnetic transient measurement system during the debugging of a 500 kV gas insulated substation. The measurement results show that the maximum common mode disturbance voltage and differential mode disturbance voltage are 326.75 V and 189.84 V respectively. The difference of the port disturbance voltage between the isolating switch operation, the breaker closing operation and the breaker opening and closing operation is analyzed and compared. The disturbance voltage of the port of the circuit breaker has a considerable amplitude level, especially the disturbance voltage of the port of the circuit breaker is in the amplitude of the opening and closing operation of the circuit breaker. The micropulse duration and rising edge are more serious than when the disconnect switch is in operation. Finally, the correspondence between the test standard of IEC 61000-4-18 damping oscillation wave and the measured waveform is studied. The measured waveform parameters are slightly different from the standard waveform parameters, and the overall correspondence is better. The electromagnetic disturbance level of measured ports is lower than that of IEC 61000-4-18 standard.
【作者單位】： 華北電力大學(xué)高電壓與電磁兼容北京市重點(diǎn)實(shí)驗(yàn)室;國網(wǎng)江蘇省電力公司電力科學(xué)研究院;
【基金】：國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃項(xiàng)目(973計(jì)劃)(2011CB209405) 江蘇省電力公司科技項(xiàng)目(編號略) 國家電網(wǎng)公司科技項(xiàng)目(SGRI-BB-71-13-003)~~
【分類號】：TM452;TM63

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