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

Table 12

Comparative results of the 69-bus system after compensation with different load models.

Load type	Item	Uncompensated	Compensated
			SOS	SQI-SOS
Industrial load	(bus)	0.9187 (65)	0.9304 (65)	0.9304 (65)
	Ploss, kW	175.0872	143.121	143.121
	PFoverall	0.8752	0.9538	0.9538
	Total cost, $/year	92,025.82	82,174.39	82,174.39
	Annual savings ($/year)	—	9,851.42	9,851.42
	MPF, kW	3,946.63	3,919.18	3,919.18
		(#L1-2)	(#L1-2)	(#L1-2)
Residential load	(bus)	0.9203 (65)	0.9335 (65)	0.9335 (65)
	Ploss, kW	170.8264	131.1693	131.1693
	PFoverall	0.8516	0.9497	0.9497
	Total cost, $/year	89,786.35	75,892.56	75,892.56
	Annual savings ($/year)	—	13,893.79	13,893.79
	MPF, kW	3,823.35	3,808.35	3,808.35
		(#L1-2)	(#L1-2)	(#L1-2)
Commercial load	(bus)	0.9222 (65)	0.9351 (65)	0.9351 (65)
	Ploss, kW	165.0464	123.2511	123.2511
	PFoverall	0.8393	0.9442	0.9442
	Total cost, $/year	86,748.37	71,580.75	71,580.75
	Annual savings ($/year)	—	15,167.61	15,167.61
	MPF, kW	3,731.56	3,728.19	3,728.19
		(#L1-2)	(#L1-2)	(#L1-2)
Mixed load	(bus)	0.9199 (65)	0.9325 (65)	0.9325 (65)
	Ploss, kW	171.3912	134.9734	134.9734
	PFoverall	0.8606	0.9512	0.9512
	Total cost, $/year	90,083.21	77,892.02	77,892.02
	Annual savings ($/year)	—	12,191.18	12,191.18
	MPF, kW	3,863.60	3,844.38	3,844.38
		(#L1-2)	(#L1-2)	(#L1-2)