Quote Originally Posted by Voicecoil View Post
Going back to my original suggestion, rectifying & smoothing the mains to give ~325V @ abou 5KW will need some biggish capacitors which will draw hellish charging current spikes from the mains
I genuinely don't know the answer to this: Would it not be worth trialling without caps at first - the inductance of the motor windings will provide a hefty current stabilisation without throwing energy into expensive high voltage, high capacitance, high ripple caps?