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OPTIMIZ software for estimation of hydraulicplants global performances
in all their operating configurationsFeatures and global structure
IGHEM 2012
Jean HERAUDEDF DTG FranceEmail : [email protected]
Division Production Ingénierie Hydraulique - DTG2
INTRODUCTION
DTG is a unit of EDF dedicated to on-site measurements (based in Grenoble)
EDF DTG developped in 2011, a tool called"OptimizV2" which, knowing :
the intrinsic performances of units (directly taken from site measurements)loss coefficients in pipes,
….gives the performance of the plant in all itsoperating configurations
Division Production Ingénierie Hydraulique - DTG3
INTRODUCTION
This allows an optimization of the use of the plant :
Knowledge of the power levels associated withefficiency peaks (whatever units running, whateverhead)
Knowledge of power margins available for contracting system services (Power-frequencyregulation)
Besides, it allows for major hydraulic plants, a monitoring of power
Division Production Ingénierie Hydraulique - DTG
INTRODUCTION
This tool version 2 already exists (macros Excel VBA) and version 3 is being currently developped (intranet server with mathematical part on Matlab) Version 3 has extended functionalitiesThe following issue presents the features, uses and structure of this product.
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Presentation of the toolHydraulic model of a plant
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OptimizV3 (being developped) :
Division Production Ingénierie Hydraulique - DTG
Presentation of the toolHydraulic model
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Division Production Ingénierie Hydraulique - DTG
Presentation of the toolHydraulic model
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Screenshot OptimizV3
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Division Production Ingénierie Hydraulique - DTG
Presentation of the toolHydraulic model
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Presentation of the toolHydraulic model
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Presentation of the toolHydraulic model
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Division Production Ingénierie Hydraulique - DTG
Real screenshots of OptimizV3
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Screenshots V3 : Creation of a hydraulic model
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Screenshots V3 : Affectation of performance datasets to groups
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Screenshots V3 : Creation of performance datasets
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Screenshots V3 : Creation of series of datas (in a dataset)
Division Production Ingénierie Hydraulique - DTG
Optimiz allows a visualisation of input data and of the interpolation curves associated.
It allows to check :the quality of interpolationthe coherence of the data at various net headvalues …
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Presentation of the toolvisualisation of input data
Division Production Ingénierie Hydraulique - DTG
Presentation of the toolvisualisation of input data (V2)
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Division Production Ingénierie Hydraulique - DTG
Screenshot V3
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Screenshot V3
Division Production Ingénierie Hydraulique - DTG
Presentation of the toolSimulator screen (OptimizV3)
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Démo OptimizV2 (flowrate)
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Presentation of the toolSimulator screen (OptimizV3)
Division Production Ingénierie Hydraulique - DTG
Presentation of the toolGraphs
The tool (V2) is already able to generate curves for variations of load or head.Superposition of curves is possible
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Division Production Ingénierie Hydraulique - DTG
Presentation of the toolCalculation of production and energetical coefficient
OptimizV3 will be able to calculate for a monitoredperiod of supervision :
the production of the plant or the energetical coefficient (kWh/m3)
It will be able to simulate what would be producedand the Energetical coefficient (kWh/m3) with anotherHydraulic model.This is useful when you try to justify the added value of a new shape of turbine for example.
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Division Production Ingénierie Hydraulique - DTG
Comparisons can be made :At equal power of order for the energetical coefficient (kWh/m3)At power amplificated by a multiplicative factor for comparison of energetical coefficientAt equal flowrate for comparison of production or energeticalcoefficient
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Presentation of the toolCalculation of production and energetical coefficient (2013)
Division Production Ingénierie Hydraulique - DTG
By monitoring head and openings, it is possible to simulate the expected power.
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Presentation of the toolMonitoring (2013)
Expectedpower
Monitoredpower
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Presentation of the toolMonitoring
Division Production Ingénierie Hydraulique - DTG
This monitoring may allow to :Detect technical defects Power measurement defects Opening organs measurement defects On Kaplan/bulb : Defects in optimization blades / wicket gate
highlight incidents harmful to the units : Power losses by obstruction (wood stuck in the wheel, the
spiral case, the injector ...)highlight performance trends emerged in the long term or after work abnormal loss of performance: significant wear of the wheel and labyrinths poor axial setting of the wheel
detect losses in adductions (silting of the gallery or degradationof internal coatings
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Division Production Ingénierie Hydraulique - DTG
The tool is based on a matricial Newton Raphson iterative resolution.
The aim of the iteration is the convergence of
the vector of the total head calculatedtowards the target value total head.
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Structure of the tool
Division Production Ingénierie Hydraulique - DTG
Structure of the tool
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Division Production Ingénierie Hydraulique - DTG
To transpose Power and Flowrate at differentnet head values, α and β coefficients are used, defined as :
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Structure of the tool
Division Production Ingénierie Hydraulique - DTG
If net head values of the input performance datasetsframe the net head of transposition, weightedaverage is realised between the transpositions fromvarious sources.
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Structure of the tool
P
Opening
Input Datas 1 (Hn1)
Input Datas 2 (Hn2)
P1
P2P
P : Ponderated average of P1 et P2
Division Production Ingénierie Hydraulique - DTG
Conclusion
The need of a tool like Optimiz isuniversal for operating units at their best and manipulating easily the results of performance measurements.
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Division Production Ingénierie Hydraulique - DTG
Thank You for your attention
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