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 · 09-11-2015, 11:29 AM

I like the idea of a separate controller for the 100 other things.

Hey! We can just try the FOC code with pole pairs = 1 and pole pairs = 2 and see what works. haha. My guess is it won't work with the wrong number of pole pairs, or it will work horribly worse. That's now a programmable variable. I'll send a new hex file a little later.

By the way: sensorless coming soon... The actual formulas for it are pretty simple. But I don't know how it will behave at low RPM. TI has theirs work down to 1Hz. Maybe a tiny bit of jitter at near zero rpm would be hidden by a 3000 pound car? TI calls their instaspin. I was thinking of "instarotate" or something. haha. Actually, that may be too close to their TM/circleR name, so, how about instagram? Or instant quaker oatmeal? I think both of those names are unused, and don't belong to any company.

09-11-2015, 11:29 AM	#1979 (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: 1,368 Thanked 1,202 Times in 765 Posts	I like the idea of a separate controller for the 100 other things. Hey! We can just try the FOC code with pole pairs = 1 and pole pairs = 2 and see what works. haha. My guess is it won't work with the wrong number of pole pairs, or it will work horribly worse. That's now a programmable variable. I'll send a new hex file a little later. By the way: sensorless coming soon... The actual formulas for it are pretty simple. But I don't know how it will behave at low RPM. TI has theirs work down to 1Hz. Maybe a tiny bit of jitter at near zero rpm would be hidden by a 3000 pound car? TI calls their instaspin. I was thinking of "instarotate" or something. haha. Actually, that may be too close to their TM/circleR name, so, how about instagram? Or instant quaker oatmeal? I think both of those names are unused, and don't belong to any company. __________________ kits and boards Last edited by MPaulHolmes; 09-11-2015 at 01:01 PM..