環(huán)境友好型HFO-1336mzz(E)混合氣體在負(fù)荷開關(guān)中的滅弧性能仿真研究

SimulationStudyontheArcExtinguishWANGKai1,ZHOURan(1.StateKeyLab.ofElectricalInsulationandPowerEquip2.ElectricPowerResearchInstituteofGuangdongPowerGAbstract：Inordertoreducetheustwo-dimensionalmagnetohydrodynthearcextinguishingchamberduringthearcingperiodandthetthatthearcquenchingpeakofHFO-1336mzz(E)gasmixturetheaxialdirectionisgreaterthanthatofSF6.WhentheHFO-1336mzz(E)gasmixturesis30%HFO-1336mzz(E)/CO2and30%HFO-1336mzz(E)/airgasmixKeywords：eco-friendlygas;SF6-alternativegas;loadswit基金資助項目：國家自然科學(xué)基金(5182570ProjectsupportedbyNationalNaturaPowerGridCo.(GDKJXM20種強(qiáng)溫室效應(yīng)氣體，其全球變暖潛能值(global王凱，周然，張博雅，等：環(huán)境友好型HFO-1336mzz(E)混合氣體在負(fù)荷開關(guān)中的滅弧性能仿真研究1氣體[8]、碳氟化合物及其鹵代物(c-C4F8、CF3I本文提出高絕緣性能氣體HFO-1336mzz(E)作-1,1,1,4,4,4-六氟-2-丁烯，分子式為C4H2F6(CF3—為新型熱泵工質(zhì)和制冷劑進(jìn)行研究[17]。該氣體的首先根據(jù)飽和蒸氣壓特性和絕緣性能確定了然后建立了電流開斷過程的二維磁流體動力學(xué)HFO-1336mzz(E)混合氣體弧后臨界恢復(fù)電壓上升本文采用飽和蒸氣壓特性結(jié)合絕緣特性選澤了混合氣體的配比方案。首先，根據(jù)文獻(xiàn)[18]，當(dāng)30%HFO-1336mzz(E)/干燥空氣混合氣體的液化溫 HFO-1336mzz(E)/干燥空氣混合氣體進(jìn)行雷電沖擊HFO-1336mzz(E)/干燥空氣混合氣體的實(shí)驗(yàn)結(jié)果。HFO-1336mzz(E)/干燥空氣氣體充氣壓力增加到超過充氣壓力為0.1MPa下SF6的擊穿電壓。HFO-1336mzz(E)/干燥空氣有相同的規(guī)律。也就是HFO-1336mzz(E)/干燥空氣混合氣體在充氣壓力30%HFO-1336mzz(E)/干燥空氣，滅弧室充氣壓力Fig.1BreakdownvoltageofHFO-1336mzz(EFig.2Three-dimensionalstructuremodelFig.3Simulationmodeloft電弧和氣流場的動態(tài)發(fā)展過程可以用質(zhì)量守王凱，周然，張博雅，等：環(huán)境友好型HFO-1336mzz(E)混合氣體在負(fù)荷開關(guān)中的滅弧性能仿真研究+▽.(ρV)=0zBθ +▽.(ρVh)▽.(▽h)= (rBθ)=μ0Jz向速度和軸向速度；μl、μt分別為層流黏度和湍流▽HFO-1336mzz(E)/CO2、30%HFFig.4Theρcpandρhofmixedgas Mayr電弧模型對其進(jìn)行線性擬合[28]，可以求得弧趨于熄滅，電弧電壓迅速增加至最大值(熄弧尖Fig.5EvaluationmethodforthetFig.6ArcvoltageandcurSF6氣體電弧的最高溫度15400K。且30%王凱，周然，張博雅，等：環(huán)境友好型HFO-1336mzz(E)混合氣體在負(fù)荷開關(guān)中的滅弧性能仿真研究氣體的流速情況能很好的顯示出滅弧室內(nèi)能由大到小分別是SF6氣體、30%HFO-1336mzz(E)/30%HFO-1336mzz(E)/CO2混合氣體、30%HFO-1336mzz(E)/干燥空氣混合氣體在噴口通道內(nèi)的流Fig.7DistributionofarctemperatureduringFig.8Distributionofairflow本文研究了HFO-1336mzz(E)混合氣體作為滅 Fig.9Calculationresultsofpos間內(nèi)都是略大于HFO-1336mzz(E)混合氣體，而混2）由電弧溫度分布可知，混合氣體電弧在軸3）根據(jù)弧后熱擊穿評估結(jié)果，0.12MPa的干燥空氣混合氣體的熱開斷能力分別可以達(dá)到干燥空氣混合氣體的負(fù)荷電流開斷性能基本和0.1以作為環(huán)保型氣體滅弧介質(zhì)應(yīng)用于12kV負(fù)荷開研究全面驗(yàn)證HFO-1336mzz(E)混合氣體的負(fù)荷電LIXingwen,ZHAOHu.ReviewofresearchprogressinSF6suinterfaceinsulationcharacteristicsofSternalElectricFielLINXin,LIXintao,LILuwstudyofSF6substituteganicalSociety,2018,strengthofpromisingSF6manceofCO2gasinhigh-voltagecircuitbreakTransactionsonPlasmaScience,conductivitiesofhigh-temperatureCO2-CF3Imixtureandtransientconductanceofresidualarcduringitsextinction王凱，周然，張博雅，等：環(huán)境友好型HFO-1336mzz(E)混合氣體在負(fù)荷開關(guān)中的滅弧性能仿真研究PhysicsD:AppliedPhamountofO2onbreakdownanddecompositioncharacteristicsofc-C4F8/N2mixturegas[J].HighVoltaInsulation,2016,23(5):4F7N/CO2混合氣decompositionproductsofC4F7N/CO2mixconditions[J].HighVTransactionsonDielectric4F7N/空氣混合氣homogeneityonpowerfrequencyinsulationperformanceofC4F7N/airmixedgas[J].HighVpropertiesofHFO-1336mzz(E)2-butene)atsaturationconditions[J].Internatioation,2017,82:283-287.[16]JUHASZJR.Novelworkingfwasteheatrecoveryapplication[studyonphysicalpropertiesofHFO-1336mzz(E)andgravityheatpipesystemindatacemanceofenvironmental-friendlygamixtures[J].TransactionsofChina36(13):2871-2879.[19]RABIEM,FRANCKCM.TransactionsonDielectricondevelopmentofnewenvironmentally-friendlyinsulatinggsensitivitypropertiesofHFO-1336mzz(E)/CO2:anew4F7N混合氣體負(fù)荷perimentofloadswitchwithC4F7Ngasmextinguishingmodes[J]chanicalperformancecharacterplication[J].ElectricSwitchgephysicalfarameterscalculationaswitch