Uploaded February 2024 | Updated September 2026, 3 weeks ago
In this lesson we'll learn to repurpose a regular wound rotor induction motor as a doubly fed induction motor. We'll examine regular and flip flopped versions of induction and synchronous mode and introduce hyposynchronous and hypersynchronous operation. We'll learn that a rotating magnetic field on the rotor traveling in the same direction as the stator will allow operation below normal synchronous speed. Conversely we'll learn that a rotating magnetic field on the rotor traveling in the opposite direction as the stator will allow operation above normal synchronous speed. Finally, we'll examine the effect of field current variation in a doubly fed induction motor while in operation. (Full Lecture)
0:00 Introduction
1:50 Induction mode
3:30 Synchronous mode
8:10 Doubly fed induction motors
10:30 Hyposynchronous mode
16:60 Hypersynchronous mode
25:00 Experimental verification
32:00 Review
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If you wish to support this project please visit the Patreon page at: patreon.com/bigbadtech
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Copyright information: Use this lecture. Use it at home, at work, or at school. Put it in a playlist, embed it in a website, share it with your coworkers, family, friends, and enemies. I made this lecture and posted it on YouTube so users everywhere have free access to this information.
This being said, this YouTube channel is meant to be the sole point of distribution for this lecture. Users are not authorized to download it, change it, or charge for access. Don’t even think of downloading it and uploading to your own channel and pretending it’s your own work. Not cool. Use this lecture and let your friends know this free resource exists.
Use it. Don't steal it. Be cool.
__________________
For more FREE online technical training check out the following playlists available at the bigbadtech channel:
DC Circuit Analysis youtube.com/playlist?list=PLdnqjKaksr8qQ9w3XY5zFXQ2H-zXQFMlI
Single Phase AC Circuit Analysis youtube.com/playlist?list=PLdnqjKaksr8pXF2SpDyyD7ouAVlz96_Ra
3 Phase AC Circuit Analysis youtube.com/playlist?list=PLdnqjKaksr8qzoIGCYx2rhVK51ZPjXkRO
Hydraulics youtube.com/playlist?list=PLdnqjKaksr8ruhw85YYSSO6EWLhVVmSKm
Pneumatics youtube.com/playlist?list=PLdnqjKaksr8qM_nxfOnZhELfIlr6auQZG
Motor Control youtube.com/playlist?list=PLdnqjKaksr8qRPCFkU2Q8XQe0bfo99rs6
Motors and Generators youtube.com/playlist?list=PLdnqjKaksr8oba07pG-nE1Omy1_mabMtI
Motor Drives/Variable Frequency Drives (VFD) youtube.com/playlist?list=PLdnqjKaksr8qruLl85Uq3em62PjXlSNUF
Programmable Logic Controllers (PLCs) youtube.com/playlist?list=PLdnqjKaksr8qxlMYRVTF2YzTm6RwtA7pc
In this lesson we'll learn to repurpose a regular wound rotor induction motor as a doubly fed induction motor. We'll examine regular and flip flopped versions of induction and synchronous mode and introduce hyposynchronous and hypersynchronous operation. We'll learn that a rotating magnetic field on the rotor traveling in the same direction as the stator will allow operation below normal synchronous speed. Conversely we'll learn that a rotating magnetic field on the rotor traveling in the opposite direction as the stator will allow operation above normal synchronous speed. Finally, we'll examine the effect of field current variation in a doubly fed induction motor while in operation. (Full Lecture)
0:00 Introduction
1:50 Induction mode
3:30 Synchronous mode
8:10 Doubly fed induction motors
10:30 Hyposynchronous mode
16:60 Hypersynchronous mode
25:00 Experimental verification
32:00 Review
___________________
If you wish to support this project please visit the Patreon page at: patreon.com/bigbadtech
___________________
Copyright information: Use this lecture. Use it at home, at work, or at school. Put it in a playlist, embed it in a website, share it with your coworkers, family, friends, and enemies. I made this lecture and posted it on YouTube so users everywhere have free access to this information.
This being said, this YouTube channel is meant to be the sole point of distribution for this lecture. Users are not authorized to download it, change it, or charge for access. Don’t even think of downloading it and uploading to your own channel and pretending it’s your own work. Not cool. Use this lecture and let your friends know this free resource exists.
Use it. Don't steal it. Be cool.
__________________
For more FREE online technical training check out the following playlists available at the bigbadtech channel:
DC Circuit Analysis youtube.com/playlist?list=PLdnqjKaksr8qQ9w3XY5zFXQ2H-zXQFMlI
Single Phase AC Circuit Analysis youtube.com/playlist?list=PLdnqjKaksr8pXF2SpDyyD7ouAVlz96_Ra
3 Phase AC Circuit Analysis youtube.com/playlist?list=PLdnqjKaksr8qzoIGCYx2rhVK51ZPjXkRO
Hydraulics youtube.com/playlist?list=PLdnqjKaksr8ruhw85YYSSO6EWLhVVmSKm
Pneumatics youtube.com/playlist?list=PLdnqjKaksr8qM_nxfOnZhELfIlr6auQZG
Motor Control youtube.com/playlist?list=PLdnqjKaksr8qRPCFkU2Q8XQe0bfo99rs6
Motors and Generators youtube.com/playlist?list=PLdnqjKaksr8oba07pG-nE1Omy1_mabMtI
Motor Drives/Variable Frequency Drives (VFD) youtube.com/playlist?list=PLdnqjKaksr8qruLl85Uq3em62PjXlSNUF
Programmable Logic Controllers (PLCs) youtube.com/playlist?list=PLdnqjKaksr8qxlMYRVTF2YzTm6RwtA7pc
