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

Table 2

Results of a conventional PSO and the proposed NM-PSO in a fixed network topology.

Relay no.	PSO		NM-PSO
	PS	TDS	PS	TDS
1	0.4644	0.2171	0.4911	0.1854
2	1.0728	0.5065	1.1621	0.4096
3	0.5681	0.6440	0.7506	0.3810
4	0.4553	0.7807	0.6156	0.5056
5	0.4861	0.2293	0.6632	0.1491
6	1.1828	0.2348	0.4056	1.0842
7	0.5468	0.5244	0.7574	0.2783
8	0.5518	0.7422	0.7954	0.3902
9	0.6187	0.1462	0.4075	0.2891
10	0.3648	1.0287	1.0075	0.2176
11	0.4392	1.0460	0.7999	0.3419
12	0.7757	0.9921	1.1674	0.4226
13	0.4754	0.2358	0.6585	0.1000
14	0.5058	0.6784	0.594	0.4299
Obj-Fun	6.1328		5.5514