ansys convergence conference 2013 - aandd.jp · ptparameter id tifi tiidentification for a battery...
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P t Id tifi ti fParameter Identification for a Battery Equivalent Circuit Model
Shugang Jiang, A&D Technology Inc g g g gyXiao Hu, ANSYS Inc.
J 4th 2013June 4th, 2013
ANSYS Convergence Conference 2013
AgendaAgenda
Introduction Battery Equivalent Circuit Model (ECM) and y q ( )
Parameter Identification A&D Technology Battery Testing Solution A&D Technology ─ Battery Testing Solution ANSYS ─ ECM Tool Conclusion
Introduction
BackgroundBackground
Energy Management System of HEV and EV Battery Management Functionsy g Battery Modeling and Parameter Identification
Electrochemical Modelect oc e ca ode Equivalent Circuit Model
Battery ECM and Parameter Identification
Equivalent Circuit Model
Battery OCV Ohmic resistanceOhmic resistance Two sets of parallel resistor-capacitor combinationmass transport effectsmass transport effects double layer effects
Parameter Identification Tests
Constant current pulse discharge and charge tests at various SOC and current rates
Current
)
at various SOC and current rates
Cur
rent
(A
Battery Voltage
V)
ry V
olta
ge (V
Time (sec)
Bat
te
T0 T1 T2
Model EquationsModel Equations
VVVVV 210 VVVVV oct
iRV 00 iRV
iRV
dtdVC
1
111
1
iVdVC 222 Rdt 22
Jiang and Hu’s MethodJiang and Hu s Method
Jiang and Hu’s MethodJiang and Hu s Method
Shugang Jiang, “A Parameter Identification Method for a Battery Equivalent Circuit Model", SAE 2011‐01‐1367Xiao Hu, Lewis Collins, Scott Stanton, Shugang Jiang, “A Model Parameter Identification Method for Battery Applications”, SAE 2013‐01‐1529
A&D Battery Testing Solution
iTestKey FeaturesKey FeaturesControl up 16 cell test circuits
1 PPS with 16 circuits4 PPS each with 4 circuits
iTest can be remote or local to cluster
Standard SystemiTest PCiTest software & applicationiConnect I/O, Set of cables
Ethernet Ethernet ModbusiConnect I/O, Set of cables
iTest interface (flexible)16 Analog In 2 Ethernet 16 Temperature 1 Serial8 Digital In8 Digital In8 Digital Out
iTest Application ContentGUI & Interface
iConnect Distributed I/O
I/OProgrammable Power Supply Thermal Chamber
Tests with ReportsHybrid Pulse Power Characterization
Programmable Power Supplies (PPS)
yGeneral Static CapacityUS06 Drive CycleCycle Life TestCalendar Life Test
Simulation modeBattery Cell(s)Thermal ChamberSimulation modey ( )
Data Acquisition and Controlq
ANSYS ECM Tool
ECM Parameter Extraction ToolECM Extraction Toolkit
Voc vs. SOC
Pulse DischargePulse Discharge
ECM Parameter Extraction ToolECM Extraction Toolkit
ECM Model Workflow
ConclusionConclusion
ConclusionConclusion
Innovative method for the parameter identification of a battery equivalent circuit modely qBattery testing solution for parameter identification
data collectiondata collectionEasy to use battery ECM tool
