Timeline for Problem with performances of a control scheme
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Nov 21, 2019 at 10:41 | vote | accept | J.D. | ||
| Nov 21, 2019 at 9:05 | comment | added | fibonatic | Phas margin is a property of the closedloop, but $\tau$ only affects the feedforward transfer function and thus the feedback loop should remain unaltered so the phase margin should remain unaltered also. | |
| Nov 21, 2019 at 7:53 | history | edited | J.D. | CC BY-SA 4.0 |
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| Nov 21, 2019 at 7:27 | history | edited | J.D. | CC BY-SA 4.0 |
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| Nov 20, 2019 at 12:50 | answer | added | fibonatic | timeline score: 4 | |
| Nov 20, 2019 at 12:10 | comment | added | fibonatic | Your equations are correct, I jumped to conclusion when I saw the sum of the two controllers in the numerator (but they should also be summed in the denominator in order to have what I initially thought). | |
| Nov 20, 2019 at 7:48 | comment | added | J.D. | @fibonatic this is what comes out if I do manually the computations of the input-output transfer function. Do you think it is wrong? Thank you in advance. | |
| Nov 20, 2019 at 7:37 | comment | added | J.D. | Thanks for your answers. I was looking for a lower peak of resonance in the complementary sensitivity function and less overshoot in the step response to see the increase of performances. I think the point that I am missing is why if the bandwidth is at higher frequencies the performances are better. Thanks. | |
| Nov 19, 2019 at 19:17 | comment | added | TimWescott | Your Bode plots are of the final system transfer function, and generally a closed-loop Bode plot that stays at 0dB farther out in frequency is better. So your performance is increasing with decreasing $\tau$. How are you reading your plots? | |
| Nov 19, 2019 at 18:23 | history | edited | J.D. | CC BY-SA 4.0 |
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| Nov 19, 2019 at 17:49 | history | edited | J.D. | CC BY-SA 4.0 |
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| Nov 19, 2019 at 17:15 | history | undeleted | J.D. | ||
| Nov 19, 2019 at 17:15 | history | deleted | J.D. | via Vote | |
| Nov 19, 2019 at 17:13 | history | edited | J.D. |
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| Nov 19, 2019 at 16:49 | history | asked | J.D. | CC BY-SA 4.0 |