Motion of the coil around the Axel in an electric motor.
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It doesn’t affect the direction of the rotation. The only thing that affects it is the direction of the current applied to the coil. You can make difference in the outcome of an electric motor by using different coiling techniques.
The simulation results show that the winding method has no effect on electromagnetic field distribution. However, it is able to affect the magnitude of the magnetic field and induced current. In three winding methods (solenoid winding, pancake coil winding and multi layer winding), the pancake coil winding makes the coil produce the biggest magnetic flux density and current density. The magnetic field attenuation of the coil in pancake coil winding is the slowest. (Effect of the Different Winding Methods of Coil on Electromagnetic Field during Transcranial Magnetic Stimulation. Shuo Yang, Guizhi Xu, Lei Wang and Xiu Zhang)
Motor supplyEdit
A DC motor is usually supplied through slip ring commutator as described above. AC motors' commutation can be either slip ring commutator or externally commutated type, can be fixed-speed or variable-speed control type, and can be synchronous or asynchronous type. Universal motors can run on either AC or DC.
Motor controlEdit
Fixed-speed controlled AC motors are provided with direct-on-line or soft-start starters.
Variable-speed controlled AC motors are provided with a range of different power inverter, variable-frequency drive or electronic commutator technologies.
The term electronic commutator is usually associated with self-commutated brushless DC motor and switched reluctance motorapplications.
The simulation results show that the winding method has no effect on electromagnetic field distribution. However, it is able to affect the magnitude of the magnetic field and induced current. In three winding methods (solenoid winding, pancake coil winding and multi layer winding), the pancake coil winding makes the coil produce the biggest magnetic flux density and current density. The magnetic field attenuation of the coil in pancake coil winding is the slowest. (Effect of the Different Winding Methods of Coil on Electromagnetic Field during Transcranial Magnetic Stimulation. Shuo Yang, Guizhi Xu, Lei Wang and Xiu Zhang)
Motor supplyEdit
A DC motor is usually supplied through slip ring commutator as described above. AC motors' commutation can be either slip ring commutator or externally commutated type, can be fixed-speed or variable-speed control type, and can be synchronous or asynchronous type. Universal motors can run on either AC or DC.
Motor controlEdit
Fixed-speed controlled AC motors are provided with direct-on-line or soft-start starters.
Variable-speed controlled AC motors are provided with a range of different power inverter, variable-frequency drive or electronic commutator technologies.
The term electronic commutator is usually associated with self-commutated brushless DC motor and switched reluctance motorapplications.
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