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

Table 6

Results of a conventional PSO and the proposed NM-PSO in variable network topologies.

Relay no.	PSO		NM-PSO
	PS	TDS	PS	TDS
1	0.7999	0.4297	0.5527	0.8140
2	0.8892	1.0540	1.1418	0.7155
3	0.7498	0.7342	0.7524	0.7288
4	1.1999	0.2423	1.1897	0.2440
5	0.7921	0.2679	0.9099	0.2056
6	0.6497	1.0998	0.7380	0.9772
7	0.7674	0.6715	0.6342	0.8892
8	0.8868	0.7033	0.7692	0.8726
9	0.4900	0.6088	0.7801	0.2616
10	1.0138	0.3585	0.9784	0.3580
11	0.6267	1.0189	0.5887	1.0794
12	1.1804	0.7422	1.0699	0.8652
13	0.5661	0.8237	0.6198	0.7069
14	0.7781	0.6595	0.6128	0.9878
Obj-Fun	65.0723		64.6398