Control package: Difference between revisions
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| rss || style="background: red;" | no || || | | rss || style="background: red;" | no || || | ||
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| rowspan="24" | Tunable Models || ltiblock.gain || style="background: red;" | no || || | |||
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| ltiblock.pid || style="background: red;" | no || || | |||
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| ltiblock.pid2 || style="background: red;" | no || || | |||
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| ltiblock.ss || style="background: red;" | no || || | |||
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| ltiblock.tf || style="background: red;" | no || || | |||
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| realp || style="background: red;" | no || || | |||
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| AnalysisPoint || style="background: red;" | no || || | |||
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| genss || style="background: red;" | no || || | |||
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| genfrd || style="background: red;" | no || || | |||
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| genmat || style="background: red;" | no || || | |||
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| getLoopTransfer || style="background: red;" | no || || | |||
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| getIOTransfer || style="background: red;" | no || || | |||
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| getSensitivity || style="background: red;" | no || || | |||
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| getCompSensitivity || style="background: red;" | no || || | |||
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| getPoints || style="background: red;" | no || || | |||
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| replaceBlock || style="background: red;" | no || || | |||
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| getValue || style="background: red;" | no || || | |||
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| setValue || style="background: red;" | no || || | |||
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| getBlockValue || style="background: red;" | no || || | |||
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| setBlockValue || style="background: red;" | no || || | |||
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| showBlockValue || style="background: red;" | no || || | |||
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| showTunable || style="background: red;" | no || || | |||
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| nblocks || style="background: red;" | no || || | |||
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| getLFTModel || style="background: red;" | no || || | |||
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Revision as of 12:45, 23 September 2015
The control package is part of the Octave Forge project.
Function list
Linear System Representation
| Chapter | Function | Implemented | File | Status |
|---|---|---|---|---|
| Basic Models | tf | yes | @tf/tf.m | |
| zpk | yes | zpk.m | ||
| ss | yes | @ss/ss.m | ||
| frd | yes | @frd/frd.m | ||
| pid | no | |||
| pidstd | no | |||
| pid2 | no | |||
| dss | yes | @lti/dss.m | ||
| drss | no | |||
| filt | yes | filt.m | ||
| rss | no | |||
| Tunable Models | ltiblock.gain | no | ||
| ltiblock.pid | no | |||
| ltiblock.pid2 | no | |||
| ltiblock.ss | no | |||
| ltiblock.tf | no | |||
| realp | no | |||
| AnalysisPoint | no | |||
| genss | no | |||
| genfrd | no | |||
| genmat | no | |||
| getLoopTransfer | no | |||
| getIOTransfer | no | |||
| getSensitivity | no | |||
| getCompSensitivity | no | |||
| getPoints | no | |||
| replaceBlock | no | |||
| getValue | no | |||
| setValue | no | |||
| getBlockValue | no | |||
| setBlockValue | no | |||
| showBlockValue | no | |||
| showTunable | no | |||
| nblocks | no | |||
| getLFTModel | no |
Model Interconnection
Model Transformation
Linear Analysis
Control Design
Matrix Computations
Some very basic examples
PT1/low-pass filter step response
| Code: Creating a transfer function and plotting its response |
T1=0.4; # time constant
P=tf([1], [T1 1]) # create transfer function model
step(P,2) # plot step response
#add some common markers like the tangent line at the origin, which crosses lim(n->inf) f(t) at t=T1
hold on
plot ([0 T1], [0 1],"g")
plot ([T1 T1], [0 1],"k")
plot ([0 T1], [1-1/e 1-1/e],"m")
hold off
|
Try also bode(P)! (a first order low-pass filter has -3db magnitude at f=1/T1)