Thank you very much for this wonderful tutorial.Please upload more of engineering tutorials,especially for nonlinear control system,electrical machines and power electronics.
Hi Shashank, while discussing transfer functions of a system... we assume order of numerator (m) is less than order of denominator (n). in that case if we want to find the response, the numerator polynomial dissolve into coefficients for the individual terms (by using partial fractions). so, only denominators will have "s" complex variables and numerators will have constant values. so, only poles determine the stability under our condition (m
Good video, but you are too fast. Please slow down a bit, in future videos extend the length of your videos and explain slowly, because I am struggling to make sense of your videos on these theorems
Firstly why we want to go from splane to w plane, and on what basis we say that system is stable when it circles the origin? And what is the reason for a system to be stable when all the poles are on left-hand side..?
sir what is when we have only any nyquist diagramm how can we analysing the stability .or other way how can we calculate the N,Z AND P when we have only nyquist diagram and no s-plan ?. thanks
did you watch "control systems Principle of Argument" video? If not... Nyquist Stability video might not make sense. First watch Principle of Argument & then watch Nyquist Stability criterion.
Thanks Techgurukula, Each videos of you that I have watched been really usefull, thanks a lot...is there a way I can drop you an email? I have this other problem that I need help with...
sir tell me why in nyquist criterion only poles of c.l.t.f determines the stability i mean if zeros of C.L.T.F is also at right half then it can also makes system,then why zeros are not studied i.e. How they are commenting on stability without the knowing zeros????
+saurabh yadav. that depends on your encirclement reference if you take clock wise encirclements as reference (CW +ve; CCW -ve). Then N = Z-P if you take anti-clock wise encirclements as reference (CCW +ve; CW -ve). Then N = P-Z Thanks, Techgurukula.
open loop transfer function G(s)H(s) in real examples contains numerical part and denominator part.like (s+2)/s(s+3).here N(s) is (s+2) and s(s+3) is D(s)
So nice and educative
Thanks! Finally I was able to wrap my head around this
Thank you very much for this wonderful tutorial.Please upload more of engineering tutorials,especially for nonlinear control system,electrical machines and power electronics.
Hi Shashank,
while discussing transfer functions of a system... we assume order of numerator (m) is less than order of denominator (n). in that case if we want to find the response, the numerator polynomial dissolve into coefficients for the individual terms (by using partial fractions). so, only denominators will have "s" complex variables and numerators will have constant values.
so, only poles determine the stability under our condition (m
very Good video,Thank u very much,many of my confusions were cleared.
Excellent content keep it up🙇
I'm your student arun Sir awesome lecture sir
thanks for explaining,
Sir i want some videos for constant m&n circles....
Good video, but you are too fast. Please slow down a bit, in future videos extend the length of your videos and explain slowly, because I am struggling to make sense of your videos on these theorems
great work! Would u be able to create more videos upon Nyquist Stability Criterion. more examples and problems.. Thanks
Thank You!! it was helpful...👍
Thanks alot. it was very helpfull.
By the way which application are you using for taking notes.its wonderfull.
perfect!! thanks a lot
Firstly why we want to go from splane to w plane, and on what basis we say that system is stable when it circles the origin? And what is the reason for a system to be stable when all the poles are on left-hand side..?
Thanks a lot
Thanks.....
sir what is when we have only any nyquist diagramm how can we analysing the stability .or other way how can we calculate the N,Z AND P when we have only nyquist diagram and no s-plan ?.
thanks
did you watch "control systems Principle of Argument" video?
If not... Nyquist Stability video might not make sense.
First watch Principle of Argument & then watch Nyquist Stability criterion.
it's nice
Thanks Techgurukula, Each videos of you that I have watched been really usefull, thanks a lot...is there a way I can drop you an email? I have this other problem that I need help with...
Thank you for the comments!
email: techgurukula@gmail.com
Tq sir
sir tell me why in nyquist criterion only poles of c.l.t.f determines the stability i mean if zeros of C.L.T.F is also at right half then it can also makes system,then why zeros are not studied i.e. How they are commenting on stability without the knowing zeros????
Hello mr thumma ;)
wrong explanation ,how you can take the value of system gain k=1,oltf should be kN(S)/D(S) .
Z=P-Z not the other way around
+saurabh yadav.
that depends on your encirclement reference
if you take clock wise encirclements as reference (CW +ve; CCW -ve). Then N = Z-P
if you take anti-clock wise encirclements as reference (CCW +ve; CW -ve). Then N = P-Z
Thanks,
Techgurukula.
naresh reddy sir ??
Didn't get it .
Rand Ali
Before watching this video, please watch "control systems principle of argument" video.
let me know if you still can't understand.
i still dont get it
not satisfied...still many doubts
ARUN SIR ?????
Kill me why did I choose chem eng. Go to top university, teacher can't teach wtf.
how 1+G(S)H(S)=D(S)+N(S)/D(S)
since G(S)H(S) = N(S)/D(S), adding one in both sides will give you 1+ (N(S)/D(S) which is equal to (by cross multiplication) D(S)+N(S) / D(S)
open loop transfer function G(s)H(s) in real examples contains numerical part and denominator part.like (s+2)/s(s+3).here N(s) is (s+2) and s(s+3) is D(s)
You should think about your habit of saying "okay" all the time, kind of annoying.
Lasse Henriksen I'm trying to get rid of "okay" :), in my recent videos, I've tried.
Thank you for you valid feedback.
n se percebe pissa do que dizes
Horrible.