1、華北電力大學(xué)（北京）碩士學(xué)位論文西北電網(wǎng)地磁感應(yīng)電流問(wèn)題的分析與研究姓名：梁雪迪申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：電力系統(tǒng)及其自動(dòng)化指導(dǎo)教師：劉宗歧20060110華北電力大學(xué)碩士學(xué)位論文摘要地磁暴在輸電線(xiàn)路產(chǎn)生的地磁感應(yīng)電流(GeomagneticallyInducedCurrent，簡(jiǎn)稱(chēng)GIC)可能對(duì)電力系統(tǒng)運(yùn)行帶來(lái)一系列有害影響，我國(guó)電網(wǎng)規(guī)模日益擴(kuò)大，研究電網(wǎng)GIC問(wèn)題具有重要意義。西北電網(wǎng)的地理緯度高、地質(zhì)結(jié)構(gòu)復(fù)雜等特點(diǎn)，決定了西北電網(wǎng)G

2、IC問(wèn)題值得深入研究。本文首先對(duì)電網(wǎng)GIC對(duì)變壓器、發(fā)電機(jī)、繼電保護(hù)等裝置的影響，以及GIC引發(fā)的加拿大魁北克電網(wǎng)停電等事故進(jìn)行了分析：結(jié)合實(shí)際建立了西北電網(wǎng)大地土壤電阻率模型，采用平面波理論計(jì)算了主要線(xiàn)路的地表電勢(shì)(EarthSurfacePotential，簡(jiǎn)稱(chēng)ESP)，利用PSCAD／EMTDC軟件對(duì)西北330kV現(xiàn)狀電網(wǎng)和750kV規(guī)劃電網(wǎng)主要線(xiàn)路進(jìn)行仿真分析，提出電網(wǎng)GIC的防治策略。關(guān)鍵詞：地磁感應(yīng)電流，輸電線(xiàn)路，西北電網(wǎng)，

3、PSCAD／EMTDCABSTRACTGeomagneticstormmaycausegeomagneticallyinducedcurrent(GIC)，whichbringsmanyill—effectstotheelectrictransmissionlineWiththeincreasinglyexpandingscaleofourcountry。Spowergrid，itisofcriticalimportancetostud

4、ytheGICinthegridThecharacteristicsofthenorthwesternpowergrid，suchashighgeographicallatitudeandcomplexgeologicalframework，determinethattheGICproblemofourcountry’SnorthwesternpowergridworthfurtherstudyingThisarticlefirstan

5、alyzestheill—effectsofGIContransformers，generators，protectiverelayingequipments，andSOon，aswellastheblackoutoftheQuebecPowerSysteminCanadaasaconsequenceofthesevereG1CConsideringthefeasibility，thearticlethenestablishesthem

6、odelofsoilresistivity，adoptsthePlaneWavesMethodtocomputeESPonthemajortransmissionlines，proceedsthesimulationanalysisonthemainlinesofthepresent330kVpowergridandtheplanned750kVpowergridinthenorthwestwiththeCanadianPSCAD／EM