Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Paul and Sabrina's Cheap 3 Phase Inverter (AC Controller) with Field Oriented Control

MPaulHolmes · 05-14-2011, 08:39 PM

What a beautiful song!!! Very helpful post too!

I agree that the resolver is a much more rugged solution. High voltage is also better, yes! But brand new IGBTs can be expensive. Ebay has a bunch, but new they are expensive.

Oh, I just tested the mosfet based 3 phase controller yesterday and it worked! hurray! I thought it would but it was nice to see. I believe it can do around 40kW peak with an AC motor, and closer to 50kW peak with a PMSM motor, but that needs to be tested. I'll be re-doing the driver section to make it MUCH cheaper and overall better. ya! The voltage will only be 144v because of the mosfets.

The cost of it also just dropped by almost $100 because of Fran's suggestion about the DC-DC. Because of that, I really want to do a good IGBT version now! Janis is right! Higher voltage is better.

05-14-2011, 08:39 PM	#510 (permalink)
MPaulHolmes PaulH Join Date: Feb 2008 Location: Maricopa, AZ (sort of. Actually outside of town) Posts: 3,832 Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000 Thanks: 1,362 Thanked 1,202 Times in 765 Posts	What a beautiful song!!! Very helpful post too! I agree that the resolver is a much more rugged solution. High voltage is also better, yes! But brand new IGBTs can be expensive. Ebay has a bunch, but new they are expensive. Oh, I just tested the mosfet based 3 phase controller yesterday and it worked! hurray! I thought it would but it was nice to see. I believe it can do around 40kW peak with an AC motor, and closer to 50kW peak with a PMSM motor, but that needs to be tested. I'll be re-doing the driver section to make it MUCH cheaper and overall better. ya! The voltage will only be 144v because of the mosfets. The cost of it also just dropped by almost $100 because of Fran's suggestion about the DC-DC. Because of that, I really want to do a good IGBT version now! Janis is right! Higher voltage is better. __________________ kits and boards Last edited by MPaulHolmes; 05-14-2011 at 11:36 PM..