synchronous to squirrel cage induction conversion
synchronous to squirrel cage induction conversion
(OP)
I saw the post about using a VFD on a WRIMotor with the rotor shorted. I wondered if one could short the armature windings (or connect a resister in the circuit)of an AC alternator and use it as an induction generator. Might be easier to switch back and forth with a brush/slip ring design armature vs a brushless design.
The engine speed would have to increase, but that would be a simple matter on most generator sets.
Maybe this would solve the problem of not having backup power available from an induction generator.
Jim
The engine speed would have to increase, but that would be a simple matter on most generator sets.
Maybe this would solve the problem of not having backup power available from an induction generator.
Jim





RE: synchronous to squirrel cage induction conversion
RE: synchronous to squirrel cage induction conversion
The magnetizing current needs to be provided by the load line. If you do not have a reference three phase system it will not produce electricity at all.
RE: synchronous to squirrel cage induction conversion
Besides inefficiency, do you think it would hurt the synchronous alternator to do this. Maybe if the armature current didn't exceed "normal" levels.
I understand the implications of induction generators vs excitation, that is what I am trying to get around by having the wound rotor and AVR for backup use.
Jim
RE: synchronous to squirrel cage induction conversion