DC + Storage = Full Potential

• Tim de Lange Msc. Bsc.

• InnoSys Delft BV

• Electric drive trains and electricity storage systems

• [email protected]

DC + Storage = Full Potential


• InnoSys Delft BV Current Activities:

• Finishing the motor drive of a 100hp budget drive train

• Introduction of the 700Vdc on board EV charger

• Test Evs from Essent and Enexis second life: extension to onboard 700Vdc

21kW charging

• Storage systems with second life EV batteries. 350/700Vdc compatibility


DCDC converter with energy saving lamp • Low cost • 30kHz switching frequency • COTS components • High efficient • 600 Watts • 1998


• 18 kWhrs/1000 km • 168 VDC • 5,5 kWhr • 10 HP • CdS 0,011 • 140 kgs • 300 kms @100 kph • 30 kgs of battery • Payload 200 kgs

http://www.google.nl/url?sa=i&rct=j&q=&source=images&cd=&cad=rja&docid=sIEKm0euhpd6IM&tbnid=POTbMgIPWiO--M:&ved=0CAUQjRw&url=http://www.kennislink.nl/publicaties/nuna-3-derde-overwinning-op-rij&ei=UBWvUYvoGMO_0QXkoICgDA&bvm=bv.47380653,d.d2k&psig=AFQjCNFXk5Q0mOT3sb0IcCvusYNCFKCMIA&ust=1370515150343038


• 165 kWhrs/1000 km • 370 VDC • 32 kWhr • 200 HP • CdS 0,63 • 1600 kgs • 190 kms range @100 kph • 280 kgs of battery • Payload 500 kgs


http://www.google.nl/url?sa=i&rct=j&q=elektrische+golf+essent&source=images&cd=&cad=rja&docid=Jf-ddF7-17MwxM&tbnid=wo6oKuVuexj10M:&ved=0CAUQjRw&url=https://www.nationalebeeldbank.nl/zoek?t%3Dlaadpaal&ei=lhavUaXfCe-S0AWhgYGoCA&bvm=bv.47380653,d.d2k&psig=AFQjCNFjr9SdDa7EQKryJHg_6KBGO4LlSw&ust=1370515439489815




Current status: 1- / 3-phase charger 3 / 9 kW 230 / 400Vac 18kg Now: 60km/hr

Soon: 180km/hr


In development: 700Vdc / 21kW 12kg Now: 180km/hr

Soon: 350km/hr


AC charging speeds Ranges [km/hr @ 9 kW]: [km/8hr]: Rural / dirt road: - Minibus: 27 200 - Normal car: 40 250 - InnoCar: 120 500 Urban area: - Minibus: 40 250 - Normal car: 60 350 - InnoCar: 180 650

DC charging speeds Ranges [km/hr @ 21 kW]: [km/8hr]: Rural / dirt road: - Minibus: 65 350 - Normal car: 100 450 - InnoCar: 300 650 Urban area: - Minibus: 100 450 - Normal car: 150 600 - InnoCar: 350 750




http://www.google.nl/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&docid=RoDWdHKpeb-a4M&tbnid=-9CdUK0kCdTDcM:&ved=0CAUQjRw&url=http://foreversustainable.wordpress.com/2011/05/29/alternative-energy-part-3-solar-power/&ei=vbk6U-D-KonZsgbRvoCIDQ&psig=AFQjCNEUQO85c9xBz0pVcA3WbfQrNKavAw&ust=1396443852044751

http://www.google.nl/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&docid=RoDWdHKpeb-a4M&tbnid=-9CdUK0kCdTDcM:&ved=0CAUQjRw&url=http://foreversustainable.wordpress.com/2011/05/29/alternative-energy-part-3-solar-power/&ei=vbk6U-D-KonZsgbRvoCIDQ&psig=AFQjCNEUQO85c9xBz0pVcA3WbfQrNKavAw&ust=1396443852044751



DC:

• Gives electric transportation more mileage, without really changing cars

• Gives most flexibility in choosing your charging system (induction/wire)

• Makes use of the energy sources that South Africa already has

• Enables cheaper rural high power generation

• Enables cheaper high power charging infrastructures

• Increases charging power with less copper needed

• Renewable transport where there are no power lines yet

• Can boost both rural and city economies (less distribution of fuels)

• Provides employment (production of cars / components / assembly)

• System integral thinking makes E-transport and mobile power supply

superior NOW, instead of getting stuck in future thinking


Charge Infrastructure Challenges:

• AC network on long term ‘too soft’ for PFC chargers in Evs

• DC-fication of networks needs to be done in safe steps: DC charge station

for EV

• DC on board charging when one cán and DC off board charging when one

hás to.

• DC-fication home vs DC-fication in the street: Senseo?!




Battery Life Experience:

• Essent (200.000km+)

• Enexis (200.000km+)

• InnoSys Delft BV (100.000km+ early days)

• Swollen cells

• Voltage dip

• Remaining capacity

• 5C rating vs 0.5C rating


Modularity B2G / Distribution :

• Block voltages 24V-120V

• Opted network voltage 350/700Vdc

• DCDC converter: high efficient / low price

• High efficient -> low cooling investment

• Hot swappable

• Multi-inverter ‘transformer / storage’ cabinet 19” rack



Compatibility Electric Grid:

• All electric society vs good old ac networks

• DC advantages:

• Always power factor 1

• No reactive power billing

• No distortion

• Higher efficiency due to solid state electronics

• Smaller equipment

• Easier network management: EV is buffer

• Second life business model EV batteries


Questions?

• Site: www.innosysdelft.com

• E-mail: [email protected]


http://www.innosysdelft.com/

mailto:[email protected]

Technology

DC + Storage = Full Potential