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Hello sir, Thank you for this series. Brings light in heat.

dear sir! in 23:00, can you explain why the d-axis equation has no BACK-EMF? Thank you so much!

Thank you , Nice presentation

@ Sandun Kuruppu Sir , Thank you for your videos . Can you Please make some videos on Prognostics of PMSM motors

This was an amaying lecture, also the whole series is very good and clear. Thank you!

Thank you for the excellent video. When I use the approach to estimate the air gap MMF waveform (H.l = N.i), it does not differentiate between between full pitch winding and short pitch winding. For instance, in a 3-phase, 24 slot, 4-pole machine, it gives me the same MMF distribution whether the coil pitch is 5 or 6. Is that correct?

Hello, professor. I always enjoy watching the video. I watched and copied this video, but the output value came out differently from that of the professor. Is the gain value of the PI controller different from the previous video?

in the BW = 2*pi*10, what is "10" representing (frequency of what?)

Just in the right time. Doing something with a.c servos (SM PMSM).

Can you tell how to get speed from hall sensors?

Sir is there any paid courses or unpaid courses are available from you where you teach fault diagnostic for pmsm motors? Thanks

i dont know how to implement the Dq_to_ABC block , i don't know what formulas you have used and also the ABC_to_DQ block . What formulas have you used in those?

i was looking at the DQ_to_ABC and ABC -to_DQ blocks , i don't know what you wrote in them for the script

Great Sir, the way you explained is very nice, an average mind can also understand

Thanks, can you introducing a other series for bldc motor

Hello Sir, could you explain the relationship between the dc bus and the maximum speed the pm motor can reach

Thanks for your contribution! I found it very interesting 🙌🙌

Love your videos! I am watching your entire playlist for motor control. Is it possible to have access to the simulink model?

Hi, I followed up your steps and the model can run well. The model setting is the same with your video. However, the out waveform of Iq, Id is a very sharp jumping without a smooth transition. What's wrong with me? Could you advise?

How to Measure Ld and Lq Practicaly for BLDC Mid Drive Motor?

I came up with a trouble. why is the rs in parameters.m not visible in motor function box? Undefined function or variable 'rs'.

Great Video, but i have a question If you would controll the Current with a Speed and a position controller: how do you calculate the Parameters for them. The only thing i know is, that the Bandwidth would be smaller than that of the previous controller.

thank you very much for the explanation!!!

Thank you for a brilliant video. Didn't think of using the Back-EMF for positioning the rotor, just what I needed. But I have a question. Why not just activate phase A i.e [100]. When the rotor is locked then the rotor angle should be 0deg. or?

Can you add lectures on discrete control as well ? It will be helpful for the embedded implementation

Hi I have tried implementing the steady state PMSM as you explained . However, I am getting the a,b, c phase currents till the step time as sustained oscillations instead of the decaying oscillations you shown Can you explain to me why it happen so?

Hi Sandrum, do you mind me mentioning your work in my thesis?

Hello Sir. Great series. I'm having problems when trying to implement a different PWM method (not SVM) into FOC to control PMSMs. Can I please have your contact for some questions? Thanks alot!

Sir for attaining speed > base speed, field weakening : how can we regulate i_d current for negative values?

Hi Sundan, When watching your video th-cam.com/video/MmP7qIxBZKs/w-d-xo.html I see you feed back the speed Wr and than multiply this with the torque constant. Is there any reason why you did not do this in this video? Thanks in advance!

hi sir, How I implemented Z inverse block in Simulink

hi sir, what is the name and function of the rem block. And 1/s block is the integrator block?

Hi Sir, how to measure or calculate the psir position and psir magnitude

Sensorless based

Hi Sandun, I really appreciate the time and dedication you put into this video's. I have followed all of them and I have a much better understanding of the topic, thank you for this! I was wondering could you tell me where I can find the video where you explain how to design the DC_Motor_Speed_Controller at 3:08? Thank you for your help! Mitchell

Hello Sir, I didn't find the Tem formula that you created with torque_no_test block. I have looked Introduction to Modern Analysis of Electric Machines and Drives by Paul C. Krause. Can you give more reference about it ? Thanks a lot Emin

Sir, when i try to implement this algorithm my fq and fd output is not constant (more like sine). Where should i check ? and what is your repeating sequence time values and output values ? Thanks a lot

Perfect ! Could you share us the block diagram of the simulink model or the code ? I want to change some variables and see the effects of the output

Hi sir, thank you very much for you effort, could you share us the RL values that using in your model ?

Good lecturer sir thank you🙏

Hello Prof, thank you for this fantastic lecture! I have a couple of questions though. 1. We treat the back EMF as a disturbance when designing the current controller. In physical terms, can we interpret this as since the current dynamics occur much faster than the mechanical dynamics, in the time scale where the current loop goes to its setpoint, the motor speed has barely changed (since the current/torque has to be integrated, then pass through the inertia and friction to effect a change of motor speed), so the back EMF is like a constant disturbance which the integral part of the current controller will compensate for. 2. When discussing the speed control design, we said the mechanical response is also first order, by this do you mean the behaviour of the motor speed for a input step voltage?

Hello, Can you also show how to implement SVPWM logic in Simulink?

Hello, Can you also show how to implement SVPWM logic on simulink?

Hello Sir, I have one small question regarding IPMSM drive why we have to perform autotuning process for IPMSM

Great video! I have a question. How can you keep the armature current the same in both of those two regions? We know that a transient phenomenon takes place when you jump from curve to curve. In this transient phenomenon, the current is increasing, so the torque increases, the machine accelerates, and when it accelerates, inductive voltage is increasing - so the current decreases again, and equilibrium is achieved at a higher speed. What makes us sure that the current will be the same again?

How to implement field weakening in PMDC motor?

Sorry to say but I think Electrical theta angle zero will coincide with phase a- neutral zero crossing. In your video it is different. Why?

Hello professor. Can you guide me how Tem is calculated from ia ib and ic and theta

Sir can you upload how to add position control loop. Very helpful videos.

Hi, thank you very much for video, at some point in the video you are saying that you've talked in another video about electrical vs mechanical angle for multiple pole pair machine Could point me which which video is it please? thank you in advance