Where can I find a controller for a 3 Phase AC motor?

[kolleamm]

I'm working on a project with a team in building a motor. My task is to find a controller for the motor, but I haven't had much luck.
Here are the specs for it :

Permanent magnet synchronous motor,
3 phase
8 pole
2 layer winding
100 kw power
400V

The motor is AC. If somebody can even point me in the right direction that would help greatly.

Thanks in advance!

 

[anorlunda]

Wow, ambitious project.Good luck.

Why do you need a controller? Variable frequency? Starting?

 

[russ_watters]

If you google "variable frequency drive" you'll get a lot of hits...but 100 kW is a big motor and this won't be cheap.

 

[jim hardy]

If somebody can even point me in the right direction that would help greatly.

Learn about them by searching on keywords in manufacturers' literature.

for example
http://www.eaton.com/Eaton/Products...orsStarters/SoftStartersControllers/index.htm
http://literature.rockwellautomation.com/idc/groups/literature/documents/wp/150-wp007_-en-p.pdf
should get you started on distinction between "contactor" "soft start" and "VFD"

My task is to find a controller for the motor, but I haven't had much luck.

I guess this is a low budget learning exercise ?
It'd be good experience for you guys to repair one . That'd require you to figure out how they work. They show up on Ebay occasionally
I found recently in my favorite metal recycle yard a brand new Motortronics 150hp reduced voltage soft starter . Looks just like this one but has some damage to a corner of the circuit board from when they tossed it off the truck at junkyard. I think the guys didn't appreciate what it was..

http://www.ebay.com/itm/150-HP-MOTORTRONICS-SOFT-START-/271634315964?hash=item3f3eaababc:g:sLUAAOSwajVUOyWU

Plenty of parts in there for a future welder enhancement project, ...(is "Hot Rod Lincoln" too awful a pun ?)

point being, you don't have to start from absolute scratch.

old jim

 

[kolleamm]

Thank you so much for your help everyone! I will tell the project manager what you all have written and hopefully provide more answers to what I require.