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Estimating Parameters Using Measured Data

Estimating Parameters Using Measured Data. A22 = Constant Ao = Constant Emo = Open Cir. Voltage Qe_init = Initial Extr. Chg. Model:. Ambient Temperature. Discharge Cycle. Voltage.

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Estimating Parameters Using Measured Data

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  1. Estimating Parameters UsingMeasured Data A22 = Constant Ao = Constant Emo = Open Cir. Voltage Qe_init = Initial Extr.Chg. Model: AmbientTemperature DischargeCycle Voltage Problem:Simulation data does not match measured data because the parameters are incorrect Solution:Use Simulink Design Optimization to automatically tune model parameters BatteryCell

  2. Estimating Parameters UsingMeasured Data • Steps to Estimate Parameters • Import measurement data and select estimation data • Identify parameters and their ranges • Perform parameter estimation • Validate estimation

  3. Tuning ModelsAdditional StrategiesandCapabilities • Tune parameters in stages • Narrowingrangeforvalues • Tune setsofparameters • Tune with different datasets • Usescriptingtoautomatetuningprocess • Accelerateparametertuningbyusing parallel computing Multi Core

  4. References • SAE Papers • SAE Paper 2009-01-1381: Parameterizationof a Battery Simulation Model UsingNumericalOptimizationMethods • SAE Paper 2007-01-0778: A Simple, Effective Lead-AcidBattery Modeling ProcessforElectrical System ComponentSelection • Recorded Webinar: Developing Accurate Battery Simulation Models • http://www.mathworks.com/company/events/webinars/wbnr37544.html

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