使用超级电容器混合动力轻型车辆的恶俗的设计和优化.pptxVIP

使用超级电容器混合动力轻型车辆的恶俗的设计和优化第1页/共43页 2IndexIntroductionSupercapacitorESU with SupercapacitorsDC/DC ConverterModelingResultsConclusions第2页/共43页 3Introduction Context Motivations Objectives第3页/共43页 4ContexESU with add-on SupercapacitorsTTW Three Tilting WheelsIntroduction?ContextThe Supercapacitors are an addition to batteries they can be inserted or excluded depending on the needs.第4页/共43页 5MotivationsUse supercapacitors in parallel with the battery to improve acceleration and energy recovery during brakingDesigned for peak power requirements to increase the efficency and the life cycle of the ESU systemFeasibility study of an ESUWhy Supercapacitors?The purpose is to allow higher accelerations and deceleration of the vehicle with minimal loss of energy, and conservation of the main battery pack.Introduction?Motivations第5页/共43页 6ObjectivesIntroduction?ObjectivesAnalysis and design of supercapacitor packAnalysis and design of supercap equalization netAnalysis and design of DC/DC converterDefinition of a dynamic model for supercap and DC/DC converter with several degrees of approximationDesign procedure definition for supercaps第6页/共43页 7IntroductionSupercapacitorESU with SupercapacitorsDC/DC ConverterModelingResultsConclusions第7页/共43页 8Battery vs SupercapTypeEnergy/ weight [Wh/kg]Power/Size[W/kg]Nom,Cell [V]CyclesDurability[#cicli]Charge time [h]Lead (Pb)?20÷301÷3002200÷3008÷16Ni-Cd30÷5510÷9001.2515001Ni-MH50÷8020÷10001.2530÷5002÷4Li-ion1107500÷10002÷4Li-ion VHP Saft7469003.650000020mNanosaf81500010mSupercap3.9÷5.7470÷138002.5÷2.710000000÷30sThe non conventional batteries have High Power density but the charging time is high for this application. Supercapacitor第8页/共43页 9SupercapacitorADVANTAGESHigh Capacitance and ultra low ESR High Density of PowerFast charging / discharging High Available CurrentHigh number of life cyclesDRAWBACKSLow voltage for each cellHigh Weight and VolumeVery expensive Supercapacitor第9页/共43页 10Equalization netThe disp