wat is the improvement of an dc to ac inverter setup over the normal dc to dc current controllers / forklift type motors out there at the moment , i only found out there doing these things as homebuilds and try to find out wat the advantages are
they look to have a lot more parameters to get right or they blow up
do the ac motors use less current , run cooler , have better power , are they cheaper , are they smaller ?
You will find endless discussions from the subject if you search, but in a nutshell:
- Regen, which gives real range and efficiency improvement in stop&go traffic and/or mountains, but not so in flat areas & highway drive (you can get this with some DC motors & controllers too, but not with the "typical" ones.)
- A bit better efficiency, maybe 5% more range (this also means less heat)
- No need to change brushes & clean brush dust
- Possibility to run to high enough RPM to ditch the transmission or lock it to single gear
- No TECHNICAL reason why it would be more expensive anymore due to improvements in semiconductor manufacturing; but the market responses at limited speed, hence, cheap DIY AC solutions are still scarce. And AC has a "premium technology" extra on its price tag, even if this is not based on any real cost. You can except a change in a few years because many people are working on this behind the curtains. When it happens, DC will practically disappear as has happened on many fields. Until now, DC has been an easy to pick solution "that's already there and works well enough".