Regarding an off-the-shelf VFD for a prius compressor, it would have to be one that can control permanent magnet synchronous motors with interior magnets. The TECO drive linked appears to only work in sensorless mode for induction motors. Open loop V/f would probably make a prius compressor spin, but probably not very efficiently or effectively at high power.
Also, I've measured up to 1500W (2 HP) drawn by the prius compressor on a 100F day with the fan on high, so the drive would have to be sized accordingly. Looks like the 2 and 3 HP versions of the TECO drive aren't much more expensive, though. One of those drives might work with a residential hvac compressor. Also, I forgot about masterflux drives and compressors. They're expensive, but I think they work well based on some posts on diyelectriccar. On Thu, Jun 11, 2015 at 7:03 AM, Bill Dube via EV <[email protected]> wrote: > > "Hacking" some OEM EV air conditionaing, like from a Prius, is likely the > best option. There are also inverter driven (VFD) home compressors that > would likely work as well, but aren't as rugged as the OEM EV air > conditioning compressors. > > I would investigate small, single phase input, three phase output, > variable frequency drives (VFD) instead of building my own inverter from > scratch. Like a TECO: > > http://www.surpluscenter.com/Electric-Motors/3-Phase-Motors/Variable-Frequency-Drives/1-HP-TECO-VFD-115-VAC-1PH-INPUT-3PH-OUTPUT-11-3424.axd > Likely will run nicely from DC. Certainly cheap to try. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150611/facd19a7/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
