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Last edited by lewie72; 10-25-2014 at 09:37 PM.
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Last edited by lewie72; 10-25-2014 at 09:37 PM.
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Last edited by lewie72; 10-25-2014 at 09:37 PM.
Um, yeah, that's me and those videos are already linked in this thread.
hey sorry I didn't read the 23 pages of posts I thought I seen it some where other than here before so I linked it
The cost of DC motors large enough to work for this kind of project is pretty high. If I was doing it, I'd look at a couple of 5HP 3 phase motor with VFDs. There are lots of companies that are selling microcontroller based motor controller dev kits really cheap and you'd just need to make or buy a DC converter to get your battery voltage up to what the motor eats and beef up the power components to handle the bigger motor. Not that this would be a trivial project, but it is in the realm of the doable.
Actually you have that backwards. Series DC motors similar to what I used are relatively cheap, look for used forklift motors. Alltrax 48V-72V 400-600 amp series motor controllers are also relatively cheap. Plus you don't have the expense and losses in a DC upconverter. If you want to go three phase AC you should look at the motor/inverter combos from HPEVS, though it will cost you more than a series DC setup for similar power.