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2. Motor drive - Wikipedia

   en.wikipedia.org/wiki/Motor_drive

   There are three general categories of electric drives: DC motor drives, eddy current drives and AC motor drives. Each of these general types can be further divided into numerous variations. Electric drives generally include both an electric motor and a speed control unit or system. The term drive is often applied to the controller without the ...

3. Electric motor - Wikipedia

   en.wikipedia.org/wiki/Electric_motor

   An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.

4. Variable-frequency drive - Wikipedia

   en.wikipedia.org/wiki/Variable-frequency_drive

   Small variable-frequency drive Chassis of above VFD (cover removed). A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the ...

5. Category:Electric motors - Wikipedia

   en.wikipedia.org/wiki/Category:Electric_motors

   Series wound motor; Series-parallel switching; Servomotor; Shaded-pole motor; Shaft voltage; Single-molecule electric motor; Singly fed electric machine; Slip ring; Spacecraft electric propulsion; Specific fan power; Split-phase electric power; Stator; Stepper motor; Sub-Micro AC Drive; Superconducting electric machine; Switched reluctance ...

6. Switched reluctance motor - Wikipedia

   en.wikipedia.org/wiki/Switched_reluctance_motor

   The switched reluctance motor (SRM) is a type of reluctance motor. Unlike brushed DC motors , power is delivered to windings in the stator (case) rather than the rotor . This simplifies mechanical design because power does not have to be delivered to the moving rotor, which eliminates the need for a commutator .

7. Induction motor - Wikipedia

   en.wikipedia.org/wiki/Induction_motor

   An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor that produces torque is obtained by electromagnetic induction from the magnetic field of the stator winding. [1] An induction motor therefore needs no electrical connections to the rotor.