Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free > Open ReVolt: open source DC motor controller
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 03-17-2011, 01:52 PM   #4471 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 296 Times in 168 Posts
12" x 6" pre drilled for 4 of the powerex cm400du-12f igbts , 4 mounting holes and 2 ports for cooling fluid.

__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 03-17-2011, 02:32 PM   #4472 (permalink)
ReVolt Enthusiast
 
Join Date: Jun 2009
Location: Michigan, USA
Posts: 239
Thanks: 98
Thanked 41 Times in 36 Posts
Quote:
Originally Posted by MPaulHolmes View Post
I'll send stuff to Mark.
Hey Paul,

You can email me the new files, and I'll post it on the wiki as soon as I can.

-Mark
  Reply With Quote
Old 03-17-2011, 03:05 PM   #4473 (permalink)
EvEagle
 
Join Date: Apr 2009
Location: Lansing, MI
Posts: 40
Thanks: 0
Thanked 5 Times in 4 Posts
Did someone say “water cooled IGBTs”?? This is what I’ve been working on. The white tape shows the 3/8” drilled coolant path in a ” aluminum plate.. It has 3, 300Amp IGBTs, and 16, 75Amp 1200V Hyperfast Diodes. The 4400uF caps are 300V..
Paul do you have any more of the IGBT driver boards?
[/IMG]
  Reply With Quote
Old 03-17-2011, 03:07 PM   #4474 (permalink)
EvEagle
 
Join Date: Apr 2009
Location: Lansing, MI
Posts: 40
Thanks: 0
Thanked 5 Times in 4 Posts
  Reply With Quote
Old 03-17-2011, 03:09 PM   #4475 (permalink)
EvEagle
 
Join Date: Apr 2009
Location: Lansing, MI
Posts: 40
Thanks: 0
Thanked 5 Times in 4 Posts
  Reply With Quote
Old 03-17-2011, 03:15 PM   #4476 (permalink)
EvEagle
 
Join Date: Apr 2009
Location: Lansing, MI
Posts: 40
Thanks: 0
Thanked 5 Times in 4 Posts
  Reply With Quote
Old 03-17-2011, 03:28 PM   #4477 (permalink)
EcoModding Lurker
 
Join Date: Jul 2009
Location: Seattle
Posts: 18
Thanks: 0
Thanked 1 Time in 1 Post
My, edown, what big capacitors you have. Jack, what is your heatsink going to be made of? Aluminum, stainless, copper, or other?
  Reply With Quote
Old 03-17-2011, 06:24 PM   #4478 (permalink)
EcoModding Apprentice
 
Join Date: Mar 2011
Location: alaska
Posts: 141
Thanks: 10
Thanked 32 Times in 18 Posts
hi, i'm new to the forum but i'm looking to build a healthy motor controller with more than enough power to do whatever needs to be done. I'm running a warp7 dc series motor on an electric snowmobile conversion, and need a new motor controller. ideally i'd like to run as much as 400 volts to the motor controller, and then limit that to a max of 170 volts out to the motor. i haven't yet read all of the pages here but i'm sure someone has talked about this already, if one of you could kindly point me in the right direction. i guess what i'm asking is what all would i have to change in order to operate the controller with a 400V max instead of 144. to me it seems like this would mostly be a change in the power board of the controller, by switching to components that can handle a higher voltage.

-isaac
  Reply With Quote
Old 03-17-2011, 06:50 PM   #4479 (permalink)
EcoModding Lurker
 
Join Date: Jul 2009
Location: Seattle
Posts: 18
Thanks: 0
Thanked 1 Time in 1 Post
You're not looking at a minor modification to the power board, you're looking at an entirely new power board design.


Not to be a downer, but where the hell are you going to put 400V worth of batteries on a snowmobile? That's a lot of stuff in a pretty small package. Unless you're planning to use C cell batteries and only go a few miles.
  Reply With Quote
Old 03-17-2011, 08:41 PM   #4480 (permalink)
Master EcoModder
 
Join Date: Apr 2009
Location: Charlton MA, USA
Posts: 463

EVVette - '71 Chevy Corvette Coupe
Thanks: 31
Thanked 172 Times in 92 Posts
Quote:
Originally Posted by isaac_alaska View Post
hi, i'm new to the forum but i'm looking to build a healthy motor controller with more than enough power to do whatever needs to be done. I'm running a warp7 dc series motor on an electric snowmobile conversion, and need a new motor controller. ideally i'd like to run as much as 400 volts to the motor controller, and then limit that to a max of 170 volts out to the motor. i haven't yet read all of the pages here but i'm sure someone has talked about this already, if one of you could kindly point me in the right direction. i guess what i'm asking is what all would i have to change in order to operate the controller with a 400V max instead of 144. to me it seems like this would mostly be a change in the power board of the controller, by switching to components that can handle a higher voltage.

-isaac
Isaac,

Running 400V and reducing to 170 would be pointless unless you are using batteries that sag by 60%. You would most likely not need to go over 250V to always get 170 at the motor and nothing lower.

As for going higher then 250V, you will need to redo the power board at the minimum to increase the isolation gaps or else you will have problems with the high voltage humping the gaps.

If you want high voltage, you will be better off going with IGBT modules.

Are you riding the sled long range or doing something like grass drags?

-Adam

__________________
www.EVVette.com - 1971 Corvette Coupe Conversion to all Electric!
www.AdamBrunette.com - Machining, CNC, Robotics and Electronics.

You can download RTD Explorer for the Cougar controllers at www.EVVette.com
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Paul and Sabrina's Cheap 3 Phase Inverter (AC Controller) with Field Oriented Control MPaulHolmes Fossil Fuel Free 3471 06-01-2020 10:53 PM
Paul & Sabrina's Cheap EV Conversion MPaulHolmes Fossil Fuel Free 542 11-12-2016 09:09 PM
Three Dirt Cheap DIY Electric Cars - Part 5 SVOboy EcoModder Blog Discussion 0 12-12-2008 04:10 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com