Can AC motors be controlled by frequency converter?
Only frequency conversion motor can use frequency converter to speed up, ordinary motor can not use frequency converter speed regulation.But it is possible to start the AC motor by using frequency converter.
Yes, three-phase induction motors are available
If your site does not exist in low frequency operation, you can choose ordinary asynchronous motor, if there is low frequency operation that suggested that you choose frequency conversion motor, mainly ordinary motor cooling fan is connected with the main shaft of the motor, when the heat dissipation fan low down, along with the heat dissipation of the motor will not be able to guarantee. But the frequency conversion motor is the opposite, because the fan is controlled separately, belongs to forced air cooling. Even at low frequencies, there is no effect.