Research Article
Design of PI Controllers for Hydraulic Control Systems
Table 2
Comparative presentation of the results of design of the PI controller with performances for three methods.
| Method | | | Overshoot (%) | Settling time (ms) | Phase margin
āā(degrees) | Gain margin
| Stability margin
|
| Ziegler-Nichols (ZN) | 13.6775 | 341.8875 | 62.3 | 148 | 28 | 1.89 | 0.48 | Tyreus-Luyben (TL) | 9.4379 | 89.3741 | 13.6 | 195 | 54.6 | 3.05 | 0.62 | Proposed method (PM) | 10.78 | 57.15 | 9.98 | 72 | 56.5 | 2.74 | 0.64 |
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