Simple Quadratic Interpolation-Inspired Symbiosis Organisms Search Algorithm for Optimal Placement of Capacitors in Radial Distribution Networks with Different Loading Models

Table 7

Comparative results of the 33-bus system after compensation with different load models.

Load type	Item	Uncompensated	Compensated
			SOS	SQI-SOS
Industrial load	(bus)	0.9152 (18)	0.9305 (18)	0.9305 (18)
	Ploss, kW	167.7916	135.9869	135.9869
	PFoverall	0.9042	0.9809	0.9809
	Total cost, $/year	88,191.24	80,024.69	80,024.69
	Annual savings ($/year)	—	8,166.55	8,166.55
	MPF, kW	3,851.37	3,825.86	3,825.86
		(#L1-2)	(#L1-2)	(#L1-2)
Residential load	(bus)	0.9160 (18)	0.9314 (18)	0.9314 (18)
	Ploss, kW	164.5408	127.1548	127.1548
	PFoverall	0.8822	0.9766	0.9766
	Total cost, $/year	86,482.65	75,232.54	75,232.54
	Annual savings ($/year)	—	11,250.10	11,250.10
	MPF, kW	3,723.14	3,718.49	3,718.49
		(#L1-2)	(#L1-2)	(#L1-2)
Commercial load	(bus)	0.9175 (18)	0.9236 (18)	0.9236 (18)
	Ploss, kW	159.5012	127.1272	127.1272
	PFoverall	0.8707	0.9580	0.9580
	Total cost, $/year	83,833.85	74,168.07	74,168.07
	Annual savings ($/year)	—	9,665.77	9,665.77
	MPF, kW	3,625.88	3,625.81	3,625.81
		(#L1-2)	(#L1-2)	(#L1-2)
Mixed load	(bus)	0.9159 (18)	0.9307 (18)	0.9307 (18)
	Ploss, kW	164.9165	130.0845	130.0845
	PFoverall	0.8908	0.9776	0.9776
	Total cost, $/year	86,680.09	76,772.43	76,772.43
	Annual savings ($/year)	—	9,907.66	9,907.66
	MPF, kW	3,765.53	3,753.63	3,753.63
		(#L1-2)	(#L1-2)	(#L1-2)