A drive is the digital camera that harnesses and regulates the electrical energy sent to the motor. The drive feeds electricity in to the motor in various amounts and at varying frequencies, thereby indirectly controlling the motor’s velocity and torque.
So the many economical choice will 
be a Three Phase Induction motor followed by a BLDC electric motor. I would suggest BLDC ( for its huge market penetration in recent times,simple availability and easier electronics/control ) or PMSM (Permanent Electric Drive Motor china magnet synchronous motors )