Enhancing Distribution System Performance via Distributed Generation Placement and Reconfiguration Based on Improved Symbiotic Organisms Search

Table 1

Comparisons of ISOS and other techniques in solving 33-node system.

Items	Opened switches	PDG (kW)/(node)	Power losses (kW)	Power loss reduction (%)	Minimum voltage magnitude (pu)
Original case	33-34-35-36-37	—	202.66	—	0.9131
ISOS	7-14-9-30-28	739/(33); 469/(12); 1020/(25)	54.4785	73.1206	0.9678
SOS	7-14-9-31-28	544/(12); 530/(18); 1145/(25)	55.2824	72.7239	0.9689
FF [17]	8-9-28-32-33	841/(31); 340/(32); 591/(33)	73.95	63.51	0.9735
ISCA [18]	7-9-14-28-31	648/(30); 510/(13); 532/(16)	66.81	67.03	0.9611
FWA [19]	7-11-14-28-32	536/(32); 615/(29); 531/(18)	67.11	66.89	0.9713
HSA [20]	4-7-10-28-32	525/(32); 558/(31); 584/(33)	73.05	63.95	0.9700
GA [20]	7-10-28-32-34	—	75.13	62.92	0.9766
RGA [20]	7-9-12-27-32	—	74.32	63.33	0.9691
EOA [21]	8-27-33-34-36	165/(8); 651/(14); 1413/(29)	61.48	69.66	—
IEOA [21]	7-10-13-27-31	399/(8); 669/(17); 1160/(29)	57.40	71.67	—