- Видео 109
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Free Online Courses on Elec.Engg. by Bhuvaneswari
Индия
Добавлен 15 май 2020
Videos on Electrical Engineering courses will be uploaded here. I am starting with Electric Drives.
Lecture 22 of Power Electronics and EV Drives Course
This lecture deals with speed control of induction motor. First scalar control or v/f control is discussed. The torque-speed characteristics for variable frequency variable voltage control using a Voltage Source Inverter (VSI) is presented. Finally, an introduction to field oriented control and direct torque control is presented.
If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com
By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department of Electrical and Computer Engineering, Mahindra University Hyderabad.
If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com
By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department of Electrical and Computer Engineering, Mahindra University Hyderabad.
Просмотров: 116
Видео
Lecture 21 of Power Electronics and EV Drives Course
Просмотров 324 часа назад
This lecture deals with the torque speed characteristics, starting, braking and performance estimation of an induction motor drive. A numerical example is also worked out. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I a...
Lecture 20 of Power Electronics and EV Drives course
Просмотров 679 часов назад
This lecture deals with the principle of operation of induction motor, its torque expression and torque-speed characteristics. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department of Electrical and Compu...
Lecture 19 of Power Electronics and EV Drives Course
Просмотров 619 часов назад
This lecture presents an introduction to 3-phase induction motors and synchronous motors. Further, revolving magnetic field theory is presented. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department of El...
Drives L50 Permanent Magnet Brush-less DC Motor Drive and Concluding Remarks
Просмотров 4221 час назад
This lecture presents Permanent Magnet Brush-less DC (PMBLDC) Motor drive. Principle of operation and control configuration for the PMBLDC motor are discussed. Finally, simulation of PMBLDC motor and SRM drive are presented. This lecture also wraps up the entire course. Concluding remarks are presented in the last 10 minutes of this lecture. If you have any queries about this video lecture, ple...
Lecture 18 of Power Electronics and EV Drives Course
Просмотров 9821 час назад
This lecture presents Permanent Magnet Brush-less DC (PMBLDC) motor drive. Its principle of operation and control configuration are discussed. After that, simulation of PMBLDC motor drive and SRM are also presented. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Tec...
Lecture 3 of Power Electronics and EV Drives Course
Просмотров 10014 дней назад
Lecture 3 presents completely controllable power semiconductor devices such as Power MOSFETs and IGBTs. After that, AC-DC converters are presented. We first start with half wave rectifier with a diode. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi ...
Lecture 16 on Power electronics and EV drives Course
Просмотров 8814 дней назад
This lecture deals with special electro-mechanical devices. Initially Stepper motor is discussed followed by switched reluctance motors. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department of Electrical...
Lecture 17 of Power Electronics and EV Drives course
Просмотров 13214 дней назад
This lecture discusses control of switched reluctance motor (SRM) drives. Two numerical examples have been worked out on stepper motor and SRM drive. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department ...
Drives L49 on Control of SRM
Просмотров 4214 дней назад
Control of switched reluctance motor drives: Converter and control configuration. Numerical examples- one each on stepper motor and SRM drive. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department of Elec...
Drives L48 on Special Electro Mechanical Devices
Просмотров 66Месяц назад
This lecture deals with special electro-mechanical devices. Stepper motors are discussed initially, after which switched reluctance motors are taken up. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Departme...
Drives L47 on Self-controlled synchronous motor drive (12 pulse converter)
Просмотров 124Месяц назад
This lecture deals with 12 pulse converter configuration for a large rated synchronous motor drive system. The waveforms are discussed in detail and another numerical example has been worked out. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2...
Drives L46 on Self-controlled synchronous motor drive: starting mechanism & analysis
Просмотров 112Месяц назад
This lecture discusses self-controlled synchronous motor drive configuration. At first, starting mechanism is discussed. Then, an analysis of the drive is carried out. Finally, one numerical example is worked out. By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Currently, I am with the Department of Electrical and Computer En...
Lecture 15 on Power Electronics and EV Drives Course
Просмотров 237Месяц назад
This lecture deals with 3-phase inverter with Delta connected load in both 120 degree and 180 degree conduction mode. Finally space vector modulation technique is also explained. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I taught at the Department of Electrical Engineering Indian Institute of Technology Delhi over 2 decades. Current...
Lecture 14 of Power Electronics and EV Drives Course
Просмотров 179Месяц назад
This lecture presents Pulse Width Modulation (PWM) control technique applied to inverters to achieve output voltage (rms magnitude) control and harmonic control. An introduction to 3-phase inverter with star connected load is presented in both 120 degree and 180 degree conduction modes. If you have any queries about this video lecture, please write to me at: bhuvan225@gmail.com By the way, I ta...
Lecture 13 on Power Electronics and EV Drives Course
Просмотров 157Месяц назад
Lecture 13 on Power Electronics and EV Drives Course
Lecture 12 in Power Electronics and EV Drives Course
Просмотров 252Месяц назад
Lecture 12 in Power Electronics and EV Drives Course
Lecture 11 of Power Electronics and EV Drives Course
Просмотров 344Месяц назад
Lecture 11 of Power Electronics and EV Drives Course
Lecture 10 of Power Electronics and EV Drives Course
Просмотров 188Месяц назад
Lecture 10 of Power Electronics and EV Drives Course
Lecture 9 of Power Electronics and EV Drives course
Просмотров 2272 месяца назад
Lecture 9 of Power Electronics and EV Drives course
Lecture 8 of Power Electronics and EV Drives course
Просмотров 2832 месяца назад
Lecture 8 of Power Electronics and EV Drives course
Bidirectional Dc-DC Converter with BESS for a microgird application
Просмотров 2722 месяца назад
Bidirectional Dc-DC Converter with BESS for a microgird application
Lecture 7 of Power Electronics and EV Drives Course
Просмотров 2362 месяца назад
Lecture 7 of Power Electronics and EV Drives Course
Lecture 6 of Power Electronics and EV Drives Course
Просмотров 1592 месяца назад
Lecture 6 of Power Electronics and EV Drives Course
Lecture 5 of Power Electronics and EV Drives Course
Просмотров 1802 месяца назад
Lecture 5 of Power Electronics and EV Drives Course
Lecture 4 of Power Electronics and EV Drives Course
Просмотров 2173 месяца назад
Lecture 4 of Power Electronics and EV Drives Course
Lecture 3 of Power Electronics and EV Drives course
Просмотров 1953 месяца назад
Lecture 3 of Power Electronics and EV Drives course
Lecture 2 of Power Electronics and EV drives course: Power devices
Просмотров 2683 месяца назад
Lecture 2 of Power Electronics and EV drives course: Power devices
Lecture 1 Introduction to Power Electronics and EV Drives Course
Просмотров 4213 месяца назад
Lecture 1 Introduction to Power Electronics and EV Drives Course
Drives L45 Numerical example on V/f control and intro. to self-control mode of synchronous motor
Просмотров 3024 месяца назад
Drives L45 Numerical example on V/f control and intro. to self-control mode of synchronous motor
Thank you madam
Useful for all students like me.
Thanks a lot
What an explanation madam. Salute to you madam. It is very helpful to decide the problem statement in my Phd. Thanks alot madam.
Madam please provide detailed electrical machine videos also . We will be very grateful to you.
I have already offered an NPTEL course on electrical machines.
Great explanation. The circulating current on the primary side of DAB and the circulation current on the secondary side of the DAB needs more explanation? In a single circle, can you mention the transition between switches in regard to circulating current through the diode due to capacitor discharge?
I will try to address this issue with the help of a simulation in PSIM or MATLAB showing different modes of operation
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its excellent maam , v v clear explaination.
Hi mam, this series will have approximately how many lectures?
@@steffinmathew2565 About 30 lectures
Madam, if you include 3D enimation in your's lectures it will be more understandable and easy. I appreciate you from Pakistan. Thanks of your efforts.
Thank you
Ma'am, You are a very great teacher.
Thank you for your lecture mam. Great
Great lecture mam
Really We are blessed.
In DTC , There is no park / clarke transformation is required ?
If you are sensing three-phase currents, then to convert them into d-q, you will need these transformations. these d-q currents are used in flux and torque calculations.
Madam , can you please share your email id.
And one more thing. You have mentioned that when we have the speed reference, then you have created a block in red colour just above the speed controller & said that when speed ref we have , the flux estimation can be done. My point of view is that when we have the speed ref, then our drive will calculate the output frequency . Because freq is directly related to speed. However in order the constant V/f ratio, the drive shall choose the right voltage value to be send to output. Then when drive will decide the output voltage ( based on frequency) the stator flux will automatically be set at certain value . Am i right ?
In most of the cases, especially in induction motor drive, we will set the flux at rated value as long as the reference speed is below base speed. For operating above base speed, flux weakening is employed where the reference flux is set at a lower value than the rated flux. (Flux above based speed=rated flux*rated speed/new reference speed) Voltage is automatically decided based on flux error, torque error and voltage vector selection table.
Madam, in implementation phase , ypu have shown 2 speeds signals. 1 signal which is setpoint at which we want to run motor. Second signal coming from motor feed back which is actual speed. But in DTC there is no feed back sensor mounted on motor which measures the actual speed.
From the three-phase currents that are sensed, torque can be calculated. Synchronous speed can be inferred from d(flux angle)/dt. With the calculated torque vale and synchronous speed, actual rotor speed can be deduced. No mechanical speed sensor needed.
Can you please make a detailed video on FOC / Vector control as well
Lectures 38 and 39 are on FOC
You explained in very well manner & in depth. ❤
Which one is the book that explains this whole DTC calculation ?
Sensorless Vector and Direct torque control of AC motors by Peter Vas
@@bhuvaneswarigsfreeonlineco4109 thank you so much
@@bhuvaneswarigsfreeonlineco4109 i really appreciate your efforts to share such a great knowledge 💖
Mam, Can you please derive RMS inductor current equation from inductor waveform.
If you know the equation for the current waveform, all you need to do is to calculate integral of [i^2 dt] and divide by T and take square root. That will give you RMS value. We know the current expressions here. So, it should be doable.
Please continue the lectures
Thank you very much Mam . Important videos of Electrical Engineering 🙏🙏
very important..Thank u a lot teacher....😇
Great mam, thank you for your kind heart support for sharing your lectures..
Hello mam Please upload all lectures
very awesome lectures. every ee students should watch.
Great medam 🙏
Where are the next lectures.please upload
Very clear and informative presentation. Specially on the derivation of all currents. Thank you mam.
rotor is a squirrel cage but u r representing with 3 phase windings
Squirrel cage rotor can be represented by an equivalent wound rotor (having 3 phase windings)
madam use simple english...
Hi mam, remaining lectures not available..can you upload
Mam please upload next lectures it is very nice playlist 🙏🙏
Will do it during the coming week (week of April 8,2024). Sorry about the delay.
Mam please upload the next lectures after this.
Will do it during the coming week (week of April 8,2024). Sorry about the delay.
@@bhuvaneswarigsfreeonlineco4109 Mam not uploaded anything from your given date
For an input voltage of 1000 V and an output voltage of 4000 V. what is the value of the inductance L. Please give me the answer.
Thank you madam. Great analysis madam.
the best video on dab on youtube, thanks mam
Thanks for providing valuable lecture it would be great if you explain simulation too specifically v2g operation.
Wow ma'am wonderful initiative. It would help many who couldn't get into IIT to access IIT level education! Thanks so much ma'am . This will be very useful for me to revise as well . Please keep posting ma'am 🙏🙏
Thank you!