It was very useful for me, thank you. If the motor we used was a stepper motor, what would have changed in the end? From where? Can you explain. Thank you.
Hello Fusun, there are many good resources on the Web for stepper motors. The torque and back emf follow the same physics theories that I outline. The difference is going to be how the magnetic fields are developed. For example, with a permanent magnet stepper, the magnets are on the rotor and the conductors are wound on stationary posts spaced around the rotor. These are called stator phases. The simplest configuration consists of 4 stators phases all spaced 90-degrees around the rotor. By pulsing the stator phases sequentially, you will step the rotor into 90-degree positions. Adding more stator phases and/or using more poles on the rotor can decrease the positions to lower angles for higher granularity. Also, reluctance motors can be used instead of permanent magnets. Hope this helps. -Dr. K
Hi Alper, when you say parallel do you also mean that the rotors are connected as well as the DC bus voltage? If the motors are identical, then the torque provided will be shared evenly. In reality, the motors will have slightly different motor constant values and slightly different resistance and inductance. Therefore, there will be a slight offset of the torque that each motor provides. If you know the different motor parameters, you could model this with a constant applied voltage, an identical angle of rotation (or identical angular velocity) and the torque would be split as T = Kt1*Ia1 + Kt2*Ia2. Hope this helps.
thank you so much now am able to understand what happens here while previously i used to memorise without knowing
Great explanation! And nice starting song as well!
That was very helpful, thank you.
Oh men. Thank you so much, Sir
You are welcome. Hope the video was helpful.
Thank you so much sir...
It was very useful for me, thank you. If the motor we used was a stepper motor, what would have changed in the end? From where? Can you explain. Thank you.
Hello Fusun, there are many good resources on the Web for stepper motors. The torque and back emf follow the same physics theories that I outline. The difference is going to be how the magnetic fields are developed. For example, with a permanent magnet stepper, the magnets are on the rotor and the conductors are wound on stationary posts spaced around the rotor. These are called stator phases. The simplest configuration consists of 4 stators phases all spaced 90-degrees around the rotor. By pulsing the stator phases sequentially, you will step the rotor into 90-degree positions. Adding more stator phases and/or using more poles on the rotor can decrease the positions to lower angles for higher granularity. Also, reluctance motors can be used instead of permanent magnets. Hope this helps. -Dr. K
Hello sir, what kind of changes can there be if we use two dc motors in parallel?
Hi Alper, when you say parallel do you also mean that the rotors are connected as well as the DC bus voltage? If the motors are identical, then the torque provided will be shared evenly. In reality, the motors will have slightly different motor constant values and slightly different resistance and inductance. Therefore, there will be a slight offset of the torque that each motor provides. If you know the different motor parameters, you could model this with a constant applied voltage, an identical angle of rotation (or identical angular velocity) and the torque would be split as T = Kt1*Ia1 + Kt2*Ia2. Hope this helps.
@@powerelectronicswithdr.k1017 Thank you so much for replying sir. If you ever decide to visit Turkey, you can be my guest anytime you want.