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Steady state error- Control system

  1. Sep 6, 2016 #1
    Hello,

    I have a question about steady state error.

    how can we get to the C?

    I think it has to be Ea(G1+D)G2=C
    which gives


    (R-NH)(G1+D)G2 / (1+(G1+D)G2H)=C
     

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    Last edited: Sep 6, 2016
  2. jcsd
  3. Sep 7, 2016 #2

    BvU

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    Hi,

    Is there a contradiction between what you write and what the author writes ?
     
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