電網(wǎng)地磁感應(yīng)電流檢測算法及裝置研制.pdf

1、華北電力大學(xué)（北京）碩士學(xué)位論文電網(wǎng)地磁感應(yīng)電流檢測算法及裝置研制姓名：張浩申請學(xué)位級別：碩士專業(yè)：電力系統(tǒng)及其自動化指導(dǎo)教師：劉連光20060110華北電力大學(xué)碩士論文摘要磁暴會導(dǎo)致大電網(wǎng)中產(chǎn)生地磁感應(yīng)電流(Geomagneticinducedcurrent，簡稱GIC)。GIC對電力系統(tǒng)運行有一系列有害影響，例如近年來在我國長距離高等級輸電系統(tǒng)中已經(jīng)發(fā)現(xiàn)很多GIC造成的影響案例；因此，研究我國電網(wǎng)的GIC問題有重要意義。本論文則主要

2、研究電網(wǎng)GIC監(jiān)測技術(shù)，首先結(jié)合我國現(xiàn)代大電網(wǎng)現(xiàn)狀和前景，探討在我國建立GIC監(jiān)測網(wǎng)絡(luò)，分析GIC對電網(wǎng)設(shè)備運行的危害程度，為最終提出有效的GIC防治方法提供依據(jù)；其次完成了電網(wǎng)GIC監(jiān)測預(yù)警系統(tǒng)軟硬件設(shè)計，解決了監(jiān)測裝置研制中的信號采集、處理、存儲等問題；再次根據(jù)電網(wǎng)OIC產(chǎn)生機理及其特性，論文闡述了對GIC信號的提取分析算法；最后通過在湖南郴州220kV變電站投運該裝置，檢驗了該裝置的各項指標(biāo)性能。關(guān)鍵詞：地磁感應(yīng)電流，霍爾傳感器，

3、軟硬件設(shè)計，帶通濾波器ABSTRACTMagneticstormmayinduceGeomagneticInducedCurrentinthepowergridsGIChasaseriesofharmfulinfluencestothepowersystemforexampleinrecentyearstransmissionsystemswithlongdistanceandhighvoltageinourcountrywerealr

4、eadydiscoveredtobeinfluencedbyGIC；ThereforeithasvitalsignificancetostudyGICprobleminChinesepowergridsThispapermainlystudiesmonitoringtechnologyofGICingrids，firstlydiscussesestablishestheGICmonitornetworkinourcountryunify

5、ingpresentsituationandtheprospectofourmodernbigpowergrids，andanalyzesharmdegreetoelectricalequipmentbyGICprovidingforUStoproposethemethodofpreventingandcontrollingGICfinally；secondlycompletesthesoftwareandhardwaredesigno

6、fGICmonitoringsystemandtheproblemofsignalgathering，processing，storingandSOon；thirdlyelaboratestheanalysisalgorithmtotheGICsignalbasingOilthemechanismanditsthecharacteristicofGIC；finallyexaminesthetarget&performanceofthee

7、quipmentthroughrunningthisequipmentina220kVtransformersubstationofHuilanChenzhouZhangHao(powersystemautomation)Directedbyprof，LiuLianguangKEYWORDS：Geomagneticinducedcurrent，Hallsensor，Designofhardware&software。Bandpassfi