Difference between revisions of "Original Ziegler-Nichols gains listed after improved tuning rules are incorrect"
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Revision as of 14:40, 31 August 2019
| Edition | Second |
|---|---|
| Version number | 3.0j |
| Submission date | 31 Aug 2019 |
| Your name | Richard Murray |
| E-mail address | murray@cds.caltech.edu |
| Chapter | 11 |
| Page number | 13 |
| Line number | 22, 23 |
| Current status | Closed |
The gains listed in parenthesis in equation (11.10) are not quite correct:
- For the step response method in equation (11.10a) the original Ziegler-Nichols gains should be $k_p = 1.43T/(K \tau)$ and $k_i = 0.43 T / (K \tau^2)$.
- For the frequency response method in equation (11.10b) the original Ziegler-Nichols gains should be $k_p = 0.45 k_c$ and $k_i = 0.54 k_c/T_c$.
