Applying Hybrid PSO to Optimize Directional Overcurrent Relay Coordination in Variable Network Topologies

Table 7

10 independent runs of a conventional PSO and the proposed NM-PSO in variable network topologies.

10 independent runs	PSO	NM-PSO
1	65.0723	64.6398
2	66.6168	65.6285
3	65.2207	65.6045
4	67.0376	65.6308
5	66.0238	65.5951
6	67.0316	64.7014
7	66.9528	65.5822
8	66.7907	64.8591
9	66.7058	65.3773
10	66.1551	65.0092
Mean	66.3607	65.2628
Standard deviations	0.72601	0.41393