Table 5 The optimal values of PI controllers
method | PO | I-GWO | EO |
|---|---|---|---|
\(K_{pf}\) | 19.5348 | 17.87 | 15.82 |
\(K_{i} f\) | 0.15 | 0.11 | 0.26 |
\(K_{pg}\) | 0.0188 | 0.021 | 0.027 |
\(K_{ig}\) | 0 | 0 | 0 |
\(K_{p - pss}\) | 0.3391 | 0.322 | 0.291 |
\(K_{i - pss}\) | 0 | 0 | 0.001 |
\(\lambda_{{\omega_{r} ,\theta_{r} }}\) | \(- 3.2726 \pm j8.0655\) | \(- 3.0867 \pm j8.1283\) | \(- 2.7627 \pm j8.2254\) |
\(\zeta\) | 0.3760 | 0.3550 | 0.3184 |
Status | Stable | Stable | Stable |