永磁同步电动机电流自适应控制

Mining&ProcessingEquipmentTTTTTBTTTBBTBTBTBTBkAkTTkTkBAkTkAkfTkfAkTkdTkkfAkdAkfAkdAkdakdafzAkdAkdAkdAkAkTkTkfAkkfAkdAkKtrdqdq[()]qTPiLLiij=--32jLLdqPiTin′nqi′di′ai′bi′ci′iidi′qi′ii'qpi(d)tikvvtK=Δ+Δ∫01Mining&ProcessingEquipmentkkAtvAtutffkfAtkfAtdAtff()vfvvΔΔ=+Δ2124()exp()fuauΔ=--Δ2211fvki()(,]ivBBvkfvvABBAvA⎧Δ⎪-Δ⎪=Δ=Δ∈⎨-⎪Δ⎪⎩301'q(()(()))(d)()tifvkfutdvvvtfv=Δ-Δ-ΔΔ+ΔΔ∫112031''()()()(()()qqikikvkfvfv=-+Δ+Δ-Δ1311(())[()()]kfukdvkvkΔ-Δ-Δ-121abABAnalysistotheInterferenceFactorsinCourseofInfraredCarbonMonoxideDetectionandStudytotheCompensationMethod......................................................................................HEYuKaietal.(25-27)Thepaperintroducesthestructureofanewkindofgascellwithtwosightsourcesandfourdetectors.Italsoanalysessomefactorssuchastemperature,pressure,gasselectivity,circuitcharacteristicetc.anditscompensationmethods.Thetestresultshowsthattheinstrumenthashighprecision,stronganti-interferenceability,widemeasurementrangeandonlinecontinuouslydetectingability.DescriptorsInfraredCarbonmonoxidesensorStructureofgascellInterferencefactorCompensationmethodStudyoftheSoundEmissionTechniqueonForecastingtheCoalSeamCrackingandExcessiveGas...........HUANGShengQuanetal.(28-29)Thepapersuggestsapplyingsoundemissiontechniquetoforecastthecoalseamcrackingandexcessivegas,introducesthedetectionprincipleforthesoundemission,themanufacturemethodforthesoundemissionsensorandtheprocessingmethodforthesignal.Thetechniqueprovedfeasibletoforecastthecoalseamcrackingandexcessivegasbythetestandtheactualdetection,anditissimple,rapidandexact.DescriptorsSoundemissionCoalseamcrackingandexcessivegasForecastLoaders&HaulersCurrentStatusandDevelopmentofMiningInfoTechnology()...........................................................................GAOMengXiong(45-51)AccordingtotheinfofromMINExpo2004INTERNATIONALandtheothers,thepaperbrieflynarratestheapplicationoftheinfotechnologyinminingindustryanditsdevelopment.DescriptorsMininginfotechnologySensortechnologyCommunicationtechnologyComputertechnologyOptimizationDesignandManagementStudytotheTramcarYardontheSub-ShaftMouth....................HUANGJingLongetal.(51-53)Thepaperbrieflyanalysesthelayouttypeandcontrolcharacteristicofthedomesticandforeigntramcaryardonthesub-shaftmouth,designsthelooptramcaryardsystemwithelectricrotarydisc,whichintegratestheadvantageoflooptramcaryardandtheyardwithrotarydisc,realizestheautomaticcontroltomanagementsystemfortramcarontheshaftmouthandthelooptramcaryardbyPLCtechnique,guaranteesthesafetyoperationofthesystembycontrollingthelockingofsignals.DescriptorsSub-shaftLooptramcaryardTramcarmanagementsystemAutomaticcontrolPLCStudytotheOptimizationConfigurationbetweenScrapersandTramcarsinLarge-ScaleOpencastMine.......................................................................................................CHENXingMingetal.(54-56)Onbasisofachievedstudyresults,thepaperconcludestheordinarymathematicalmodelforoptimizingtheconfigurationbetweenscrapersandtramcars,andstudiesthefactorsaffectingthemodelforoptimizingtheconfiguration.Computationalsampleshowsthatthemodeliscorrectandeffective,suitablefortheconfigurationbetweenscrapersandtramcarsinnewlybuiltandrebuiltmine,whichcouldcheckwhethertheconfigurationbetweenscrapersandtramcarsisoptimal.DescriptorsScraperOptimizationconfigurationLinearlayoutMathematicalmodelStudytotheOnlineWeighingTechniqueoftheElectricExcavator..............................................................................JIAYongHong(56-58)ThepaperprimarilyanalysestherelationshipamongtheexcavatorÕsloadings,tensionforceofthesteelropeandthepositionofbucket,introducesthedesignthoughtthatapplyingtheprogrammablecontrollerandthemagneticallyflexibleweighinginstrumenttoformtheonlineweighingsystemoftheelectricexcavator,whichcouldincreasetheloadingcoefficientoftheexcavatorandtheburdeningaccuracyinminingarea.DescriptorsMine-usedelectricexcavatorOnlineweighingMagneticallyflexibleweighinginstrumentStudytotheOnlineAutomaticWeighingSystemoftheLarge-ScaleElectricExcavator...............................................GUYingKui(59-61)Foroptimizingtheweighing,matchingandschedulingbetweentheelectricexcavatorandthetramcarwithelectricwheel,thepaperofferstheideaforfoundingthedynamicmodelinthesamepositionintherotaryprocessbeforeandafterunloadingofelectricexcavator,establishesthedynamicmodelfortheweighingsystem,designsanddevelopsthesoftwareandhardwareoftheonlineweighingsystem.Theemploymentresultshowsthatthesystemcouldenhancetheproductionandmanagementefficiencyinminingarea.DescriptorsElectricexcavatorOnlineweighingDynamicanalysisHoists&WinchesApplicationandStudytotheBufferingTechniqueinShaftHoisting......................................................................................ZHAIYaJunetal.(68-69)Bydiscussiontoanti-fallingbufferingschemeforthetackle,thepapermakesouttheanti-fallingbufferingdeviceforthetackle,whichcouldsolvethebufferingandbrakingproblemforthetackleonconditionthatthebrakeisoutoforder,andcouldoperatesstably.Itappliestoeachkindofhoistintallbu