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Storage pumps and reversible pump-turbines - Renewables Grid ...

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LMH Laboratory for Hydraulic Machines<br />

<strong>Storage</strong>Pumps<br />

&<br />

ReversiblePumpTurbines<br />

Scientific<strong>and</strong>TechnicalChallenges<br />

Prof.FrançoisAvellan,Dr.Eng.,<br />

EPFLSchoolofEngineering<br />

InstituteofMechanicalEngineering<br />

Hongrin Dams<br />

FMHL SA<br />

RGI<strong>Storage</strong>Workshop,Montreux Jan.27,2011


LMH Laboratory for Hydraulic Machines<br />

Scope<br />

Pumped<strong>Storage</strong>PowerPlants<br />

TodayTechnology<br />

Science<strong>and</strong>TechnologyChallenges<br />

Introduction<br />

Computing Domain of the<br />

HYDRODYNA Pump-<br />

Turbine


LMH Laboratory for Hydraulic Machines<br />

SwissPowerGeneration<br />

Swiss Electricity Data:2009Survey<br />

70'000<br />

[GWh]<br />

60'000<br />

50'000<br />

40'000<br />

30'000<br />

20'000<br />

10'000<br />

<strong>Storage</strong> Hydropower Plants<br />

Pumped <strong>Storage</strong><br />

Plants<br />

AnnualPower<br />

Generation<br />

Run-off Hydropower Plants<br />

NuclearPower Plants<br />

Annual Power<br />

Consumption<br />

Fossil FuelPowerPlants<br />

<br />

1970 1975 1980 1985 1990 1995 2000 2005 2010<br />

Switzerl<strong>and</strong>tobeProudofaNearlyCO 2FreePowerGenerationMix


LMH Laboratory for Hydraulic Machines<br />

PowerGenerationMixinSwitzerl<strong>and</strong><br />

Fossil Fuel<br />

Power Plants<br />

5.1 %<br />

Nuclear<br />

Power Plants<br />

40.8 %<br />

63 971GWh PowerGenerationin2009:<br />

Pumped<br />

<strong>Storage</strong><br />

Power Plants<br />

3.9 %<br />

<strong>Storage</strong><br />

Hydropower<br />

Plants<br />

32.9 %<br />

Run-off<br />

Hydropower<br />

Plants<br />

25.2 %<br />

2009:11 734MWHydropowerGeneratingCapacity;1 699MWPumpingPowerCapacity


LMH Laboratory for Hydraulic Machines<br />

HongrinLéman PSP<br />

Hongrin Lake(1969):<br />

52millionsm 3 Capacity<br />

Veytaux PowerStation<br />

(1972)<br />

4HorizontalTernary Units<br />

256MWPumpingPower<br />

240MWGeneratingPower<br />

850mWC Head<br />

600min 1<br />

Hongrin Lake<br />

Léman Lake<br />

EarlyDevelopments:Veytaux Pumped<strong>Storage</strong>Plant(FMHLsa)


LMH Laboratory for Hydraulic Machines<br />

<strong>Storage</strong>ofEnergyinExcess<br />

AvailabilityofHVAC<strong>Grid</strong>(220kV&380kVinCH)<br />

Reservoirs<br />

<strong>Grid</strong>Control<br />

GeneratingMode<br />

PumpingMode<br />

MitigatingtheFlow<br />

Changes<br />

Reservoirs<br />

Pumped <strong>Storage</strong>PowerPlants<br />

Services<br />

> 60 GW Wind Power in EU!<br />

• 22 GW in Germany;<br />

• 15 GW in Spain.<br />

InternalRateofReturn:SpotMarketvs.Servicestothe<strong>Grid</strong>


LMH Laboratory for Hydraulic Machines<br />

LastOutst<strong>and</strong>ingPumped<strong>Storage</strong>Plants<br />

Commissionedsince12Years<br />

Pumped<strong>Storage</strong><br />

Unit<br />

PowerPlant Capacity Units Power Owner Country Year<br />

Yangyang 1'032MW 4 258MW KOMIPO SouthKorea 2006<br />

Kannagawa 2'820MW 6 470MW TEPCO Japan 2005<br />

Goldisthal 1'060MW 4 265MW VATTENFALLEurope Germany 2002<br />

Kazunogawa 1'648MW 4 412MW TEPCO Japan 2001<br />

Tianhuangping 1'800MW China 2001<br />

Guangzhou 2'400MW 8 300MW CLP,Guangdong China 2000<br />

Matanoagawa 1'200MW ChugokuElectric<br />

Power Japan 1999<br />

Okutataragi 1'932MW 6 322MW KEPCO Japan 1998<br />

Needsof<strong>Storage</strong>Capacity:ReversiblePumpTurbines


LMH Laboratory for Hydraulic Machines<br />

500rpm,525,000kVA<br />

MotorGenerator,Hitachi<br />

2 820MWCapacity<br />

6PumpTurbines,470MWPumpingPower,625mWC Head<br />

TEPCO,TokyoElectricPowerCo.<br />

6PumpTurbines<br />

@500rpm<br />

Kannagawa PSP:WorldwideLargestCapacityPumped<strong>Storage</strong>PowerPlant


LMH Laboratory for Hydraulic Machines<br />

VerticalTernaryUnits:<br />

PeltonM/GPump<br />

MatchingbothPumping<strong>and</strong><br />

GeneratingModes<br />

LengthoftheRotatingTrain;<br />

Speed;<br />

RequiredSubmergence.<br />

HighGradeControl<br />

Pelton Turbine<br />

HydraulicByPass<br />

TurbineDriveforStartingUp<br />

1DirectionofRotation<br />

EfficientCooling<br />

SafeTransients<br />

Technology ofTernary Units<br />

FMHL +<br />

2 Ternary Units<br />

~850 mCE 120 MW @ 500 min -1


LMH Laboratory for Hydraulic Machines<br />

HydraulicBypass<br />

P<br />

MG P T<br />

P<br />

P<br />

Technology:EnablingFast<strong>Grid</strong> PrimaryControl


LMH Laboratory for Hydraulic Machines<br />

MixedIsl<strong>and</strong>edNetwork<br />

WindFarmSafetyTrippoff<br />

200MWWindFarm<br />

1'200MWNuclearPowerPlant<br />

2x250MWPumped<strong>Storage</strong><br />

Plant<br />

http://simsen.epfl.ch/<br />

C.Nicoletetal.,"<strong>Storage</strong>Units<br />

toStabilizeMixedIsl<strong>and</strong>ed<br />

PowerNetwork:aTransient<br />

Analysis".HYDRO2008,<br />

Ljubljana,Slovenia.<br />

AdvancedNumericalSimulation:EnablingFast<strong>Grid</strong>Control


LMH Laboratory for Hydraulic Machines<br />

<strong>Grid</strong>PrimaryControl<br />

thruHydraulicBypass<br />

http://simsen.epfl.ch/<br />

200 MW Wind Farm Safety Tripp off<br />

SIMSEN Numerical Simulation<br />

250 MW Hydraulic Bypass<br />

AdvancedNumericalSimulation:EnablingFast<strong>Grid</strong>Control


LMH Laboratory for Hydraulic Machines<br />

ReversiblePumpTurbineUnits<br />

TechnologyChallenges<br />

StartUpProcedures<br />

StaticFrequencyConverterofLimited<br />

Power<br />

BacktoBackarrangement<br />

TurbineorPonyMotorDrive<br />

Dewatering/WateringProcess<br />

BidirectionalMotorGeneratorSpeed<br />

AirCoolingvs.WaterCooling<br />

Pumping&GeneratingOperating<br />

RangesMatching<br />

Efficiency<br />

Cavitation<br />

Transients:Startup&LoadRejection<br />

<strong>Grid</strong>PrimaryControl<br />

Variablespeed<br />

DoubleRegulatedStages<br />

Yang Yang (ALSTOM Hydro)<br />

• 800 mWC<br />

• 4 x 258 MW à 600 min -1<br />

• Double Regulated Stages (n q 38)<br />

ReversiblePumpTurbineTechnology


LMH Laboratory for Hydraulic Machines<br />

620MWNant deDrance PSPProject(VS)<br />

Commissioningin2015<br />

EmossonLake 21010 6 m 3 Capacity<br />

VieilEmossonLake1110 6 m 3 Capacity<br />

250to390mWC HeadRange<br />

4x155MWSingleStagePumpTurbines<br />

428.6min 1 ±7%VariableSpeedDrive<br />

VARSPEEDTechnologyEnablingPumpingPowerControl


LMH Laboratory for Hydraulic Machines<br />

1GWLinthal PSPProject(GL)<br />

Commissioningin2015<br />

Limmern 9210 6 m 3 Capacity<br />

Mutt 2510 6 m 3 Capacity<br />

560mWC to724mWC HeadRange<br />

4x250MWSingleStagePumpTurbines<br />

500rpm ± 6%VariableSpeedDrive<br />

VARSPEEDTechnologyEnablingPumpingPowerControl


LMH Laboratory for Hydraulic Machines<br />

StaticFrequency<br />

Converter<br />

VoltageSourceInverter<br />

DoubleFeed<br />

AsynchronousMachines<br />

CylindricalRotorwith<br />

ThreePhasesWinding<br />

SlipRingsforExcitation<br />

Reversible<br />

PumpTurbine<br />

VARSPEEDTechnology<br />

VARSPEEDTechnologyEnablingPumpingPowerControl


LMH Laboratory for Hydraulic Machines<br />

NumericalSimulationoftheVeryFast<br />

ChangeofthePowerSetPoint<br />

http://simsen.epfl.ch/<br />

Varspeed<br />

YvesPannatier :"Optimisationdesstratégiesderéglage<br />

d'uneinstallationdepompageturbinageàvitesse<br />

variable",Thèse EPFLN° 4789,2010.<br />

VARSPEEDTechnologyEnablingPumpingPowerControl<br />

Synchronous<br />

Machine


LMH Laboratory for Hydraulic Machines<br />

Safety,Reliability<strong>and</strong>Flexibility<br />

MeetingDem<strong>and</strong>ofPeakingPower<br />

<strong>Grid</strong>PrimaryControl<br />

ShortTimeResponse<br />

FrequentStarts&Stops<br />

ExtendingOperatingRanges<br />

KnowledgeDevelopmentinHydrodynamics<br />

Sciences<strong>and</strong><br />

TechnologyChallenges


LMH Laboratory for Hydraulic Machines<br />

RotorStatorInteractions<br />

inGeneratingMode<br />

HYDRODYNA<br />

CaseStudy<br />

z o =20,z b =9<br />

Experimental<br />

Investigations<br />

ValidationofUnsteady<br />

NumericalSimulations<br />

HYDR DYNA<br />

"Dynamic"BehaviorofPumpTurbines<br />

Unsteady Pressure Field<br />

in Generating Mode<br />

Max Discharge


LMH Laboratory for Hydraulic Machines<br />

Experimental<br />

Infrastructure<br />

• Research<br />

• Education<br />

• Experimental<br />

Validation<br />

EPFLTesting Facilities<br />

Complying IEC 60193 St<strong>and</strong>ards<br />

Efficiency Uncertainty


LMH Laboratory for Hydraulic Machines<br />

Pumped<strong>Storage</strong><br />

PowerPlant<br />

IEC60193PumpTurbineModelTesting<br />

Country Owner/Manufacturer Capacity Year<br />

Ludington MI,USA Consumers Energy 6x312MW 2010<br />

XIANYOU China DONGFANGElectricalMachineryLtd 1'200MW 2009<br />

XIANSHUIJAN China HARBINElectricalMachineryLtd. 4x370MW 2009<br />

VeryHighHead R&D/ALSTOMHydro 20078<br />

ROCKYMOUNTAIN GA,USA OglethorpePower/AmericanHydro 3x370MW 20056<br />

BLENHEIMGILBOA NY,USA Rev.Eng.&ImpellerModelNYPA 4x260MW 2003<br />

CHEONSONG SouthKorea KoreaWesternPowerCo/GEHydro 2x350MW 2003<br />

Nq45 R&D/ALSTOMHydro 2002<br />

VENDANOVEII Portugal EDP/VOITHHydro 2x98MW 2001<br />

ALQUEVA Portugal EDIAoperatedbyEDP/ALSTOMHydro 2x130MW 1999<br />

TAUMSAUK* MO,USA UnionElectricCompany/AmericanHydro 2x220MW 1997<br />

EPFL:aKeyResearchCenterforHydropowerDevelopment


LMH Laboratory for Hydraulic Machines<br />

ResearchProject<br />

PumpTurbineHydrodynamics<br />

Investigating,Modeling<strong>and</strong>HarnessingUnsteadyFlows;<br />

FluidStructureCoupling;<br />

RotorStatorInteractions;<br />

Cavitation;<br />

PerformanceCurve<br />

Stability<br />

HYDR DYNA<br />

Sciences<strong>and</strong>Technology Challenges<br />

PompeturbineHYDRODYNAz o =20,z b =9


LMH Laboratory for Hydraulic Machines<br />

HYDRODYNAPumpTurbine<br />

Scale Model<br />

HYDR DYNA<br />

ExperimentalInvestigations


LMH Laboratory for Hydraulic Machines<br />

ComputingDomain<br />

HYDR DYNA<br />

FlowNumericalSimulations


LMH Laboratory for Hydraulic Machines<br />

RotorStatorInteraction<br />

GeneratingMode@FullLoad<br />

HYDR DYNA<br />

PressureFieldattheSpiralCasingWall


LMH Laboratory for Hydraulic Machines<br />

K= 2Modeof9x20RSI<br />

ExperimentalValidationofRSINumericalSimulations


LMH Laboratory for Hydraulic Machines<br />

ImpellerModalAnalysis:2DMode<br />

HYDRODYNAImpellerFluidStructureCoupling


LMH Laboratory for Hydraulic Machines<br />

TowardaSustainableCO 2Free<br />

PowerGenerationSystem<br />

RenewingAvailableHydropowerSchemeswithPumped<br />

<strong>Storage</strong>PowerPlantsforMaximizingValueoftheAvailable<br />

<strong>Storage</strong>Capacities<br />

MinimizingEnvironmentalImpacts;<br />

IncreasingPowerCapacity<strong>and</strong>Efficiency;<br />

DevelopingPowerControlCapability;<br />

EnhancingRobustness,Availability,Maintainability&Safety.<br />

InterconnectedElectricityNetworksOpportunities<br />

EnablingNewRenewableEnergyDevelopment;<br />

PeakPowerGeneration;<br />

<strong>Grid</strong>PowerControlServices:PrimaryControl(frequency).<br />

StrategicIssuesforDevelopingPumped<strong>Storage</strong>PowerPlants


LMH Laboratory for Hydraulic Machines<br />

Conclusions<br />

Pumped<strong>Storage</strong>Plants(PSP)arethekeycomponentfor<br />

enablingthedevelopment<strong>and</strong>theoptimumuseofprimary<br />

renewableenergy.<br />

Thebusinessmodelisdrivenbytheenergyspotmarket,the<br />

servicestothegrid<strong>and</strong>thepublicpolicy.<br />

The<strong>pump</strong>turbinetechnologyneedstobefurtherdeveloped<br />

tomeetthemarketneeds<strong>and</strong>toensure<strong>and</strong>enhance,<br />

reliabilityavailabilitymaintainability<strong>and</strong>safetyofthepower<br />

plants.Attentionmustbepaidwhenutilizingexisting<br />

hydraulicinfrastructure,e.g.penstock.<br />

TheongoingSwissprojectsofPSPareanopportunityfor<br />

furtherinvestigationsinthefieldofenablingenergy<br />

technology.<br />

EPFLSchoolofEngineering


LMH Laboratory for Hydraulic Machines<br />

EPFLDoctoralTheses<br />

NicolasRUCHONNET:"Multiscale ComputationalMethodologyAppliedto<br />

Hydroacoustic ResonanceinCavitating PipeFlow", EPFLDoctoralThesis<br />

N°4778,2010.<br />

Berten STEFAN:HydrodynamicsofHighSpecificPowerPumpsatOff<br />

DesignOperatingConditions ,EPFLDoctoralThesisN°4642,2010.<br />

PhilippeAUSONI:"TurbulentVortexSheddingfromaBluntTrailingEdge<br />

Hydrofoil", EPFLDoctoralThesisN°4475,2009.<br />

OlivierBRAUN:"PartLoadFlowinRadialCentrifugalPumps",EPFL<br />

DoctoralThesisN°4422,2009.<br />

AlirezaZOBEIRI:"InvestigationsofTimeDependentFlowPhenomenaina<br />

Turbine<strong>and</strong>aPumpTurbineofFrancisType:RotorStatorInteractions<strong>and</strong><br />

Precessing VortexRope",EPFLDoctoralThesisN°4272,2009.<br />

AdvancedEducationinHydrodynamicsofTurbomachines


LMH Laboratory for Hydraulic Machines<br />

ThanksforyourKindAttention<br />

RGI<strong>Storage</strong>Workshop,Montreux Jan.27,2011


LMH Laboratory for Hydraulic Machines<br />

Gr<strong>and</strong>eDixence HydropowerScheme<br />

400Millionsm 3 Reservoir<strong>Storage</strong>Capacity:MaximumValue


LMH Laboratory for Hydraulic Machines<br />

Gr<strong>and</strong>eDixence HydropowerScheme:<br />

GeneratingPowerStation:<br />

CollectingWaterfrom35<br />

SeasonalOperation Glaciers<br />

1'269MWBieudron<br />

685MWNendazFionnay<br />

100MWCh<strong>and</strong>oline<br />

170MWPumpingPower<br />

400Millionsm 3 Reservoir<strong>Storage</strong>Capacity:MaximumValue


LMH Laboratory for Hydraulic Machines<br />

1'269MWBieudron PowerPlant<br />

3Pelton Turbines<br />

500MVAGenerators<br />

428.5min 1<br />

14poles,35.7MVA/pole<br />

WaterCooled<br />

423MWPelton<br />

Turbines,5injectors<br />

1'883mWC Head<br />

25m 3 /sDischarge<br />

D 1 =3.993m<br />

~28tRunnerMass<br />

Bieudron PowerPlantEnablingRhôDix <strong>Storage</strong>PumpedProject

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