Table 2 Swarm configurations of the compared PSO methods.
Swarm parameters | Standard type PSO | Constriction-type PSO | PSO with OPSO-parameters |
|---|---|---|---|
max. number of iterations | 1000 | 1000 | 1000 |
number of particles | 20 | 20 | 20 |
w start | 0.9 | - | optimized |
w end | 0.4 | - | optimized |
N 1 | 2 | 2.05 | optimized |
N 2 | 2 | 2.05 | optimized |
constriction factor k | - | 0.73 | - |