|
You should do a search for VFD - variable frequency drive.
These are more often used to drive 3 phase motors from a single phase supply but there are single phase versions available. Be aware that some of the single phase units are designed for particular types of motors.
As Barry said, they aren't cheap.
The best option would be to fit a low voltage, speed controlled motor either a stepper or servo. There are lots of motor/driver combinations available, quite a few of which have the details necessary to build your own.
It would also be a lot safer, not a good idea playing around with anything at mains voltages.
|