DC Motor Source for Electric Car [RE-wrenches]

[Darryl Thayer]

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Hello Jeremy
Last time I checked a 10 HP DC motor was very
expensive.
How about a 3 phase 208 volt motor with a VFD, it
might be cheaper.  I would guess the battery voltage
would have to be about 300 volts, the battery would
feed the DC bus of the VFD directly, You would have
good efficency over most of the range, but not as much
stall torque. Most of the time we can run these motors
from 180 to 3600 RPM, (for a 1800 rpm motor) which
matches many auto engine ranges. (a cooling fan helps
with low speed operation)
Darryl 
 
--- Bob Ellison <ellison at gisco.net> wrote:
> Try advanced DC motors 
> Bob
> -----Original Message-----
> From: Jeremy Rodriguez [mailto:allsolar at ris.net] 
> Sent: Saturday, April 23, 2005 1:13 PM
> To: RE-wrenches at topica.com
> Subject: DC Motor Source for Electric Car
> [RE-wrenches]
> 
> Wrenches,
> I have a prospective client looking for a 7-10 HP
> 36-48vdc motor for an 
> electric car project he plans to start soon. Any
> ideas? What about an 
> old airplane engine starting motor. Is this the
> wrong list for this 
> topic?
> 
> Jeremy
> All Solar
> CO, USA


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