EG243 Control Systems 07 Ans

# EG243 Control Systems 07 Ans - Page 1 of 4 SCHOOL OF...

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Unformatted text preview: Page : 1 of 4 SCHOOL OF ENGINEERING EXAMINATION MODEL ANSWER SHEET Paper Title: Control Systems Paper No : EG-243 MAY/JUNE 2007 Examiner(s) : JSM Question No Marks JSM/EG-243_07 1. ( 29 ) 5 ( ) 2 )( 1 ( ) 10 ( 4 2 + + + + = s s s s s GH (a) [5 marks] (b) [4 marks] (c) 2 2 5 ( ) t t t t c t Ae Bte Ce De---- = + + + [5 marks] (d) The system output for: 0<K<K 1 is oscillatory with 2 terms, K > K 1 is non-oscillatory with 3 terms. [5 marks] (e) [6 marks] ( 29 ∞ = = = + = = + + + + + + + + = ∞ → ∞ → t t t e s s R amp ii t e s s R i s R s s s s s s s s E ) ( then / 1 ) ( r ) ( 3 / 1 40 20 20 ) ( then / 1 ) ( : step ) ( ) ( ) 10 ( 4 ) 5 ( ) 2 )( 1 ( ) 5 ( ) 2 )( 1 ( 2 2 2 ( 29 ( 29 3 / 2 40 20 40 ) 10 ( 4 ) 5 ( ) 2 )( 1 ( ) 10 ( 4 2 = + = + + + + + + = → ϖ ϖ ϖ ϖ ϖ ϖ ϖ ϖ j R C j j j j j j R C- σ x x o o K 1 K=0 C(s) + + R(s) K s s s K + + + + ) 2 )( 1 ( ) 2 ( K a s ) ( + K s s K a s s R C + + + + + + = ) 2 )( 1 ( ) )( 2 ( ϖ-1 -4 -10 Page : 2 of 4 SCHOOL OF ENGINEERING EXAMINATION MODEL ANSWER SHEET Paper Title: Control Systems Paper No : EG-243 MAY/JUNE 2007 Examiner(s) : JSM Question No Marks JSM/EG-243_07 2 (a) Stability margins: Magnitude: change in gain to arrive at stability point when phase is 180...
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## This note was uploaded on 05/17/2010 for the course ENGINEERIN EG 243 taught by Professor Murphy during the Spring '10 term at Swansea UK.

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EG243 Control Systems 07 Ans - Page 1 of 4 SCHOOL OF...

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