[DDDvvv]

i havent decided on control yet. im designing a hv converter, (200v to 650v buck boost) and im split between using this 100hp parts for that, and a 480v 1hp industrial vector drive.

the advantage of this is, you can feed it with anything; dc motor pwm, ac, other high power project,you can even feed it with your svm design output, or any other output.

i have put this side of things aside for now, since im in the planning/design stage of trying to get that motor into the car. i wish i could multitask.

[picaboo]

I think I missed some action. Just finished reading up the entire thread in one breath...

I will be following this thread with keen interest. I am an electronics engineer, worked 15 years in VLSI and embedded electronics. So, not much practical experience in power electronics. But I eat and sleep embedded programming.

I will appreciate if you share a schematic of your arrangement till date, before sharing your venture into the bigger drive? It will allow newbies like me to follow better. With just photos it is kinda hard to follow the details.

Excellent energy you have, no doubt.

--Kish

[DDDvvv]

havent checked this thread in a while.

i dont have any schematics, and i never drew any. all i did was locate the base and emitter connections on the donor vfd, yanked out the small power module, and route the B E connections to a more powerful group of modules, while observing the phase arrangement.

but this particular donor vfd was not complicated at all. but be careful.

[picaboo]

Thanks for replying.

Did you start a new thread on this? If yes, where is it? I would like to follow the entire adventure

[DDDvvv]

anything to do with vfd's will be on this thread. sorry for the long silence. i need to really keep up with this thread.

[aeroscott]

I've been googling around to find out what would be needed for testing diy vfd 's running 2 or more at the same time at different speeds ( stability control and differential ) . Can some one help me with a link . I have a signal generator , 4 wire ohm meter , 2 frequency counter/timers (BCD output to computer ) , 50 Mhz hp scope 2 chanel (no BCD) not working right so looking for digital with BCD, , Elenco LCR-1801 , clamp meter dc etc. Looking at freeware to load tests to computer .

[Stiive]

Originally Posted by aeroscott

I've been googling around to find out what would be needed for testing diy vfd 's running 2 or more at the same time at different speeds ( stability control and differential )

You would need two (or more) motors and two (or more) controllers.
What exactly are you trying to test?

[aeroscott]

I have Prius motors , m1,m2 2 each plus a few 3 phase induction motors of various sizes , generators to 150 hp as possible dynos . 10 or so industrial vfd's small to 40 hp , 24 igbts 600a 1200v , 6 igbts 1000a 1200v, lots of big caps , etc . Prime interest is to set up test equipment to check / hack or build drives for 4 motor 4 wheel drive E class benz wagon and other simpler but more important projects like solar panel controller , battery charger , air conditioning , water pump , chain saw etc. I will pick the most simple projects to start with but continue collecting parts fore the most complex projects . I don't want to smoke parts . So I figured a power analyzer ($15,000 ) was not in the cards but I might find one cheep .So I know I can emulate one . So put together hall effect amp meters signal generators , counter/timers , scope etc . Putting all this information onto a computer , I hope will be manageable . Then I could look over the data during /after the run .

[DDDvvv]

2012-07-13 14.00.56.jpg

my latest acquisition: same 1336 drive but this is a 100 hp 480v class. works good but weighs 140 lb.

no electronic mods required. i just need to crack the whip on this bad boy while its running on a treadmill. thats too much weight for a controller.

let the fat trimming begin. target; 40lb

[Nathan219]

Where does he get such wonderful toys! Nice find a drive ratted for 100 hp continuous should be good for 150hp burst at least.