Generating; Rise Time, Overshoot etc from step input in Simulink

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Mark Wood
Mark Wood 2013-11-16
回答： durga devi 2015-8-12
Firstly I'm an absolute beginner to Matlab/simulink. From a PID control system generated in simulink, I've plotted 2-d graphs from (tout & simout). The problem I have, is I cant right click on the graph to generate overshoot etc. Could you please give me step by step instructions (that a 10 year old could follow) to generate Overshoot, Settling time etc. Thanks

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回答（2 个）

Arkadiy Turevskiy
Arkadiy Turevskiy 2013-11-18
Please take a look at the stepinfo function. That's what you need to use.
durga devi
durga devi 2015-8-12
>> s=tf('s'); >> sys=(1/(s+1)); >> s = stepinfo(sys,'RiseTimeLimits',[0.05,0.95])
s =
RiseTime: 2.9445
SettlingTime: 3.9124
SettlingMin: 0.9523
SettlingMax: 0.9996
Overshoot: 0
Undershoot: 0
Peak: 0.9996
PeakTime: 7.8163

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