vault backup: 2024-10-16 12:20:50

This commit is contained in:
Dane Sabo 2024-10-16 12:20:50 -04:00
parent 44e0c4825d
commit ffb3f5ac1c
3 changed files with 25 additions and 32 deletions

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.obsidian/graph.json vendored
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@ -63,10 +63,10 @@
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--- ---
readstatus: false readstatus: true
dateread: dateread:
title: "Modified Bode Plots for Robust Performance in SISO Systems With Structured and Unstructured Uncertainties" title: Modified Bode Plots for Robust Performance in SISO Systems With Structured and Unstructured Uncertainties
year: 2012 year: 2012
authors: authors:
- Atsumi, Takenori
- Messner, William C.
- "Atsumi, Takenori" citekey: atsumiModifiedBodePlots2012
journal: IEEE Transactions on Control Systems Technology
- "Messner, William C."
citekey: "atsumiModifiedBodePlots2012"
journal: "IEEE Transactions on Control Systems Technology"
volume: 20 volume: 20
issue: 2 issue: 2
pages: 356-368 pages: 356-368
--- ---
# Indexing Information # Indexing Information
## DOI ## DOI
@ -59,6 +43,12 @@ pages: 356-368
> *The disadvantage of loop shaping is that the usual measures of robustness-gain margin and phase margin-are inadequate to account for all but the simplest uncertainties in the nominal model.* > *The disadvantage of loop shaping is that the usual measures of robustness-gain margin and phase margin-are inadequate to account for all but the simplest uncertainties in the nominal model.*
> >
### Imported: 2024-10-16 10:59 am >[!question] Don't Understand
> *Step 1) Determine the one or more frequency responses of , one gain frequency response of an upper bound of , and one gain frequency response of . They do not need to be transfer function models.*
>
> >[!note] Note
> >Kind of just make something up? I get this is definitely easier than a TF but still.
### Imported: 2024-10-16 12:18 pm

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@ -14,3 +14,6 @@ Not particularly a limit but something to look at: there are a ton of papers tha
There is some work going on that tries to deal with this @atsumiModifiedBodePlots2012 . These people have made a tool that can create transfer functions using an upper bound of $\Delta$ and $W$ There is some work going on that tries to deal with this @atsumiModifiedBodePlots2012 . These people have made a tool that can create transfer functions using an upper bound of $\Delta$ and $W$
**Limitation**: Disk unstructured uncertainty cannot lend itself to creating individual examples of perturbed plants. It is not as simple as picking a plant that is within the robust control disk, because the transfer function that actually gets you there is lost in the abstraction. Or perhaps generalized. **Limitation**: Disk unstructured uncertainty cannot lend itself to creating individual examples of perturbed plants. It is not as simple as picking a plant that is within the robust control disk, because the transfer function that actually gets you there is lost in the abstraction. Or perhaps generalized.
**Limitation:** Verifying the model of a controller is not sufficient to verify the implementation of one.
- [ ] Find sources that support this claim⏳ 2024-10-16