Power Electronics In Electric & Hybrid Vehicles - I-Micronews
Power Electronics In Electric & Hybrid Vehicles - I-Micronews
Power Electronics In Electric & Hybrid Vehicles - I-Micronews
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<strong>Power</strong> electronics uses in HEV/EV<br />
HEV power application<br />
DC/AC inverter + DC/DC booster option (full hybrid, plug-in, EV)<br />
• Description:<br />
© 2011 • 8<br />
– DC/AC <strong>In</strong>verter: Generates a 3-phase AC signal from the high voltage battery DC current<br />
(200/400Vdc) to actuate the electric motor. The inverter is bi-directional.<br />
– DC/DC booster option: boosts the battery DC current (200/400Vdc) to provide higher voltage<br />
(600/650V) to the inverter. The converter is bi-directional. The booster is integrated in the<br />
same packaging as the inverter (Toyota Prius configuration). The booster allows the<br />
reduction of the overall power train cost.<br />
– Total average price: $1,500<br />
• <strong>Power</strong> electronics general characteristics<br />
– DC/AC <strong>In</strong>verter:<br />
• 400 – 650VAC<br />
• <strong>Power</strong>: 20 to 100 kW. Average power: 50 kW<br />
• Water cooled with a dedicated cooling circuit<br />
• Devices: IGBT + diodes next Gen: GaN/SiC diodes<br />
and switches<br />
– DC/DC booster: used by Toyota and its licensees (Ford, Nissan)<br />
• <strong>Power</strong>: 20 – 70 kW<br />
• Water cooling<br />
• Devices: IGBT + diodes<br />
– <strong>Power</strong> module average price / car: $500<br />
• Suppliers:<br />
– Toyota, Delphi, Continental , Bosch, Denso, Hitachi…<br />
High V<br />
battery<br />
Source: infineon<br />
120 /<br />
400VDC<br />
DC/DC<br />
convert<br />
er<br />
14V<br />
battery<br />
DC/DC<br />
boost<br />
convert<br />
er<br />
650VDC<br />
DC/A<br />
C<br />
inver<br />
ter<br />
E<br />
motor<br />
ICE
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