SLIDE  3.0.0
A simulator for lithium-ion battery pack degradation
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slide::Converter Class Reference

#include <Converter.hpp>

Public Member Functions

 Converter ()
 
void setPower (double Pnom)
 
double getLosses (double Vin, double Iin)
 

Constructor & Destructor Documentation

◆ Converter()

slide::Converter::Converter ( )

< should be larger than max battery voltage (15*20*4.2 = 1260)

< random guess, 5 * 380V (line voltage)

< 200 kWh from Schimpe etc.

Member Function Documentation

◆ getLosses()

double slide::Converter::getLosses ( double  Vin,
double  Iin 
)

< Unless stated otherwise, values are from Patsios et al double Iinold = Iin; //!< for printing

< We have muliple inverters, split the current between them

< the number of inverters needed to convert the power

< voltage drop over IGBTs from [69] from Schimpe https://www.infineon.com/dgdl/Infineon-FS150R12KE3-DS-v03_01-en_de.pdf?fileId=db3a304412b407950112b4311d745388 fig on p4, output characteristic IGBT at Vge = 15 and T = 125 (top right figure)

< V = 1 + (3-1)/(300-30)*(I - 30) and below 30A: V = I/30 V = a + b (std::abs(I) - c)

< current through rectifier = current of battery

< Note, that ref is a one-stage converter. The values for diodes are the by-pass diodes so might not be representative so just use values for the IGBTs for DC/DC converter too

< DC stage

< switching frequency, value from Schimpe

< voltage across the diode (i.e. resistive voltage drop across it, random guess about 0.1%)

< modulation ratio

< switch-on loss. 0 since this is a diode

< energy loss for switch off

< conduction losses

< switching losses

< current on the DC bus (ignoring losses)

< AC stage

< current through inverter = current of the DC link

< modulation ratio

< https://www.infineon.com/dgdl/Infineon-FS150R12KE3-DS-v03_01-en_de.pdf?fileId=db3a304412b407950112b4311d745388

< conduction losses (already has full current so already account for all 6 IGBTs)

< switching losses: 6 IGBTs for 3 phase full bridge converter

< double Iac = Idc * Vdc / Vac; //!< current on the AC side (ignoring losses)

< filter

< Value from Schimpe (for resistance of grid interface)

< DC link capacitance

< DC ripple voltage, wild guess since I can't find a value #TODO if is correct?

< value from Schimpe (resistance to grid)

< value from Schimpe (resistance to inverter)

< losses in capacitor on DC bus

< losses in L at the output of the inverter

< losses in L at the input of the rectifier

< total losses

< ensure all have same sign (some I^2, others I so if I < 0 they would have opposite sign)

< cout<<"Converter Vin = "<<Vin<<", Iin = "<<Iinold<<", ninverters are "<<nInverters<<" losses are "<<loss/std::abs(Vin*Iinold)*100<<" %"<<endl;

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◆ setPower()

void slide::Converter::setPower ( double  Pnom)
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The documentation for this class was generated from the following files: