Thank you Dr. Sandun for this amazing lecture. Just small doubt: if you play the video at 28:00 and observe the middle matrix, shouldn't we put the negative sign in the other sin(theta)? I found on the web that the negative sin(theta) is in the second-row first column but here you are putting it in the first-row second column does it make any difference or both are equivalent? Thanks again!
Eyad, I'm not sure exactly what material on the web you are referring to. So if you can post a link and I can see. The sign may change on the relative alignment of Id and Iq axis. One can choose Id to be leading instead of lagging. So this may be the difference. But I'd have to see the reference. See if the angle is measured as I do here. i.e. with respect to q-axis.
@@SandunKuruppu Thank you Dr. Sandun for your reply. Kindly refer to page number 8 from this .pdf file: www.bharathuniv.ac.in/page_images/pdf/courseware_eee/Notes/CE2/BEE052%20%20ELECTRICAL%20MACHINE%20MODELING%20AND%20ANALYSIS.pdf or to the following topic: en.wikipedia.org/wiki/Direct-quadrature-zero_transformation The second matrix (called Kp)
I love your motor control lectures they do have a unique perspective to them, are they from a university lectures, or some sort of seminar, and are they complete ? Sometimes they do feel like a lecture is missing or they are incomplete
Hi Daniel, it is a mix of online lectures that I had and supplemental material I prepared offline. I will be creating another set of "non-lecture" like videos in the future focusing on the concepts only. I know, sometimes lectures tend to be longer.
Excellent lecture, thank you! I have one question; shouldn't the 2/3 coefficient present in Ks also be present in the voltage invariant Clark transform due to the way the (abc) vectors sum to 3/2. Wouldn't the 2/3 coefficient correct that?
Thank you Dr. Sandun for this amazing lecture. Just small doubt: if you play the video at 28:00 and observe the middle matrix, shouldn't we put the negative sign in the other sin(theta)? I found on the web that the negative sin(theta) is in the second-row first column but here you are putting it in the first-row second column does it make any difference or both are equivalent? Thanks again!
Eyad, I'm not sure exactly what material on the web you are referring to. So if you can post a link and I can see. The sign may change on the relative alignment of Id and Iq axis. One can choose Id to be leading instead of lagging. So this may be the difference. But I'd have to see the reference. See if the angle is measured as I do here. i.e. with respect to q-axis.
@@SandunKuruppu Thank you Dr. Sandun for your reply. Kindly refer to page number 8 from this .pdf file:
www.bharathuniv.ac.in/page_images/pdf/courseware_eee/Notes/CE2/BEE052%20%20ELECTRICAL%20MACHINE%20MODELING%20AND%20ANALYSIS.pdf
or to the following topic:
en.wikipedia.org/wiki/Direct-quadrature-zero_transformation
The second matrix (called Kp)
@eyad: Observe the matrix carefully it's [q d 0] and on the web mostly it's [d q 0]. Both are correct.
I love your motor control lectures they do have a unique perspective to them, are they from a university lectures, or some sort of seminar, and are they complete ? Sometimes they do feel like a lecture is missing or they are incomplete
Hi Daniel, it is a mix of online lectures that I had and supplemental material I prepared offline. I will be creating another set of "non-lecture" like videos in the future focusing on the concepts only. I know, sometimes lectures tend to be longer.
Very detailed lecture... very rarely anyone explains fullform of d and q
Thank you Yamini!
direct axis and quadratine
Excellent lecture, thank you! I have one question; shouldn't the 2/3 coefficient present in Ks also be present in the voltage invariant Clark transform due to the way the (abc) vectors sum to 3/2. Wouldn't the 2/3 coefficient correct that?
Thank you! The 2/3 wont be on the inverse, because the trig functions result in a 3/2 that gets cancelled.
Thankyou. Where is the next video where you analyze machine using QDO ?
It is already there as you go down the playlist.
Dr. Sandun, very nice lecture. Detailed explanation. Please post the lecture notes here.
Thank you
Sandeep, do you mean the notes that I show in the video?
@@SandunKuruppu Yes Dr. Sandun can you post the notes.
Good lecturer sir thank you🙏
Most welcome
@sandun kuruppu plz guide me I want to design electric vehicle system in simulink. Please guide me sir
Maybe in the future!
Thank you sir (from Ruhuna efac)
You are welcome! Do you learn about FOC control of PMSMs at Ruhuna?
@@SandunKuruppu No sir.. But I watched some of your videos
@@win7dot Glad to hear that!
@@SandunKuruppu Happy to see this kind of videos from a Sri Lankan. Thank You sir