Control ENG HW_Part_55

# Control ENG HW_Part_55 - τ 1 = 1 min τ m = 10 sec find K...

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1 1 2 1 1 2 10 1 2 1 2 + + × + + = s s s U C 11 4 4 1 2 2 2 + + + = s s s U C C( ) = 1/11 Offset = 1/11=0.091 a) if ; 1 1 s U = frequency = 0.2516 if ; 1 2 s U = frequency = 0.2516 b)if ; 1 1 s U = frequency = 0.182 if ; 1 2 s U = frequency = 0.091

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13.5A PD controller is used in a control system having first order process and a measurement lag as shown in Fig P13.5. (a) Find the expressions for ξ and τ for the closed –loop response. (b) If
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Unformatted text preview: τ 1 = 1 min, τ m = 10 sec, find K C so that ξ = 0.7 for the two cases: (1) τ D =0,(2) τ D =3 sec, (c) Compare the offset and period realized for both cases, and comment on the advantage of adding derivative mode. ) 1 )( 1 ( ) 1 ( 1 ) 1 ( ) 1 ( ) 1 1 + + + + + + = s s s K s s K R C a m D C D C τ...
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Control ENG HW_Part_55 - τ 1 = 1 min τ m = 10 sec find K...

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