Lec 17 Steady State Error for Non Unity Feedback System

[@sandeshshelke7697]

Sir, u are very funny. Nice to see u in youtube faster speed 2. Thanks for giving good explanation.

[@shubhamkesherwani6141]

Dear sir... We all know that output should follow the reference input. in case of non unity feedback system output is multiplied by the some constant dc gain Kh. So here to nullify the effect of Kh in output,we change the reference input in such manner that Error= Rs-Cs will be zero... That's why the input is divided by Dc gain Kh. I think so.. Btw lecture series is awesome.. great help sir...

[@tanmaysaha1116]

They have clearly shown the error signal in the diagram (which is the actuating error) so if u calculate error at the location where it is asked in diagram you will get 0.5

[@SwarnimaSrivastava]

Exactly

[@joyebkapadia2650]

sir i have checked last question in matlab error value is "zero".

[@taushifanwar7023]

Excellent work, love from Bangladesh

[@user-Dham]

Sir first unity feedback mein convert then solve that is best method ans is .5 so iit is correct

[@PramitBiswas]

EG=C, E=R-HC=R-HEG => E(1+GH)=R => E=R/(1+GH)

[@abida7206]

I also got the same answer. I think, the problem in NPTEL is with the assumption in the beginning. They took E=R-C, instead of E=R-CH. Do there feedback H is missing in the final equation too. If we consider that, we will get the answer as 0.5.

[@randoms.i.m.p2583]

*According to MATLAB-SIMULINK steady state error in last question is 0*

[@arnabpaul4117]

@ 12:54 for i/p=u(t) how the type of i/p is ZERO?

[@MohaMMaDiN55]

Thank you really!

[@himanshuful]

I remember Kuo always has some exceptions with other books 😅 But still I love that text book

[@sohandas3905]

If we convert non unity feedback system to unity feedback system in that case OLTF is going to be the same but error will be different.

[@arnabsd3092]

fantastic explanations

[@intertainment7804]

Sir , how did u know the value of R(s) =1/s in general method or IP type is zero in NISE method??? Is it given in question ?

[@GeniqueEducationTeam]

Nadeem Khatri Hanji

[@intertainment7804]

@@GeniqueEducationTeam Ok thank you sir

[@abhisheknagarjun4084]

I think type of i/p considered in time domain not in s-domain..? Right Sir??

[@GeniqueEducationTeam]

@@abhisheknagarjun4084 yes

[@venkatavinod2798]

sooperb teaching sir

[@akashchandrawanshi218]

I am confuse which method to be used for non unity feedback system to find out error.different answers are coming when I am solving a numericals on this.

[@techspecialinformation7746]

I just solve last question using MATLAB SIMULINK , steady state error comming 0.

[@utkarshpant5297]

Sir yesterday Was there a theory lecture missing before Lec 13?

[@balajibaheti8577]

I think KHO method is right as while converting non-unity feedback system into the unity feedback system only transfer function remains the same and not Ess! please correct me if I am wrong!!

[@techspecialinformation7746]

I think you wrong. I cheque by MATLAB SIMULINK , ess remain same

[@akashchandrawanshi218]

I want to post you some questions how can I post?

[@amit021ranjan]

good explanation

[@divya4752]

Nise book me ess acha diya h

[@jyotigupta1087]

Non unity feedback me type ko kaise find krte h?

[@boombeachnoob3642]

1992 also one mark question given sir.......................non unity F/B systems.

[@waqarmehdi4394]

Sir, I tried with MATLAB. The steady-state error tends toward 0.

[@shivantanukumarshiv7661]

.5 is 100% correct hai actuating error k jagah error signal deya hai

[@marieshwarankaliappan1559]

According to graph plotting ess(error) = 0

[@kundankumar-ll8in]

Sir in 1st question you've taken R(s)=1/s. Then type for i/p=1. But in 1st method you said i/p type=0. How I'm confused little bit please correct me..

[@asimaarunima9678]

In t domain it's u(t). That means 1.t ka power 0..

[@pratapchandra9304]

#QUERY General method se Karna hai ya FF Kuo method se..?

[@rahulsinghthakur420]

sir here by seeing characteristic equation we found that system is unstable so why we are considering error for it CE= S^3+15S^2-500S-400

[@vickykumarmishra3637]

i simply don't agree with your comment on last method used by iit itself . because expression is obtainable for non unity feedback system , without considering unit feedback as assumption. i feel it should be corrected because this video is going to remain on youtube for long time.

[@skill-mines]

sir using matlab ess is 0.5.

[@marieshwarankaliappan1559]

But 0.5 is correct for actuating error, which is given by IIT

[@myaim3977]

Thank u sir

[@amuthamoni5964]

Tamil sir........ I didn't understand ur language.

[@sahilmalhan5773]

then learn and come

[@sahilmalhan5773]

computers dont run on tamil

[@utkarshp7688]

Nice explanation