Research Article
Influence of the Selection of Reaction Curve’s Representative Points on the Accuracy of the Identified Fractional-Order Model
Table 23
Time-domain model performance indices for process P2.
| | Identification method# | Set of points | Model | S |
| | #1: proposed | (5–50–95%) | FFOPDT | S1 = 5.3·10−4 | | #2: proposed | (10–50–90%) | FFOPDT | S2 = 7.4·10−4 | | #3: proposed | (15–50–85%) | FFOPDT | S3 = 9.1·10−4 | | #4: proposed | (20–50–70%) | FFOPDT | S4 = 1.2·10−3 | | #5: proposed | (25–50–75%) | FFOPDT | S5 = 1.4·10−3 | | #6: proposed | (30–50–70%) | FFOPDT | S6 = 1.5·10−3 | | #7: Tavakoli–Kakhki’s method 1 | — | FFOPDT | S7 = 9.5·10−4 | | #8: Tavakoli–Kakhki’s method 2 | — | FFOPDT | S8 = 1.6·10−3 | | #9: Tavakoli–Kakhki’s method 3 | — | FFOPDT | S9 = 5.5·10−4 |
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