I doubt any vfd would handle high rpms anyway. I think you would need to stay with a 2 pole for those rpm's, or you would have to have a pretty fancy driver. Bldc's aren't the right wave shape for vfds.
On Thu, Feb 23, 2012 at 7:46 PM, Kirk Wallace <kwall...@wallacecompany.com>wrote: > On Thu, 2012-02-23 at 20:10 +0000, andy pugh wrote: > ... snip > > Can you? I thought they were brushless? > > They are. > > > A VFD will rotate them, but the phase lead will be about zero, so the > > efficiency will be awful. > > Maybe that's why it didn't work when I tried using a VFD on a normal > brushless motor. > > > > A flux-vector VFD _might_ be enough like a sensorless BLDC controller > > to work, I wouldn't know about that. > > > -- > Kirk Wallace > http://www.wallacecompany.com/machine_shop/ > http://www.wallacecompany.com/E45/index.html > California, USA > > > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
