homework#4

homework#4 - Block Diagram Question 1. G a in 3 2 .8 6 S te...

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Unformatted text preview: Block Diagram Question 1. G a in 3 2 .8 6 S te p 1 Tm (L) Ia T o rq u e 188 P ID P ID 120 1 0 . 0 0 5 s+ 0 . 1 C o n st a n t S p e e d C o n t r o l e r C u r e n t C o n t r o l e r G a i n 2 T r a n sf e r F c n G a in 1 Tem 2 .8 6 1 0 . 0 0 1 5 s+ 0 . 0 2 T r a n sf e r F c n (w i th in i ti a l o u tp u ts) S cope w sp e e d _ w S cope1 Scope3 T o F ile c u r e n t_ a T o F ile 1 t o rq u e _ a T o F ile 3 Question 1 20 15 I=15.2A 10 Current (A) 5 Armature Current 0 I=1.3A -5 -10 -15 0 0.05 0.1 0.15 0.2 0.25 0.3 Time (sec) 0.35 0.4 0.45 0.5 195 Speed 190 185 180 Speed (rads/sec) 175 170 165 160 155 150 w=188.04 w=188.0 0 0.05 0.1 0.15 0.2 0.25 0.3 Time (sec) 0.35 0.4 0.45 0.5 Block Diagram Question 2. G a in 2 1 .2 6 0 .2 S te p G a in 6 Ia T o rq u e 20 C o n st a n t 1 /0 .2 G aX i n 4 P ID P ID P ID 22 1 0 . 0 7 2 s+ 4 . 0 P o si t i o n C o n t r o l e r S p e e d C o n t r o l e r T o r q u e C o n t r o l e r G a i n 5 T r a n sf e r F c n G a in 1 Tem 1 .2 6 1 0 . 0 6 0 7 s+ 0 . 0 8 6 9 T r a n sf e r F cn (w ith in itia l o u tp u ts) 1 s In te g ra to r 0 .2 G a in 3 S co p e S co p e 1 p o si t i o n _ a cu r e n t _ a T o F ile 1 sp e e d _ w T o F ile T o F ile 4 S co p e 4 xn Question 2 8 7 6 5 Current (A) 4 3 2 1 0 -1 I ~ -50A I =57,000A x 10 5 Armature Current 0 0.05 0.1 0.15 0.2 Time (sec) 0.25 0.3 0.35 6000 4000 w=3.3rad/s 2000 0 Speed (rads/sec) -2000 -4000 Speed -6000 -8000 -10000 -12000 w=3.3rad/s 0 0.05 0.1 0.15 0.2 Time (sec) 0.25 0.3 0.35 Question 2 (Cont.) 20 18 16 14 Position (m) 12 10 8 6 4 2 0 Position X=20m X=20m 0 0.05 0.1 0.15 0.2 Time (sec) 0.25 0.3 0.35 M files used during simulation: load current_a current_a; current_a=current_a'; t=current_a(:,1); Ia=current_a(:,2); CLF plot(t,Ia,'k'), xlabel('Time (sec)'), ylabel('Current (A)'), gtext('Armature Current') load speed_w speed_w; speed_w=speed_w'; t=speed_w(:,1); w=speed_w(:,2); CLF plot(t,w,'k'), xlabel('Time (sec)'), ylabel('Speed (rads/sec)'), gtext('Speed') load position_a position_a; position_a=position_a'; t=position_a(:,1); xn=position_a(:,2); CLF plot(t,xn,'k'), xlabel('Time (sec)'), ylabel('Position (m)'), gtext('Position') ...
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This note was uploaded on 02/06/2012 for the course EE 4002 taught by Professor Scalzo during the Fall '06 term at LSU.

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homework#4 - Block Diagram Question 1. G a in 3 2 .8 6 S te...

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