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

Table 4

Optimal siting and sizing of capacitors for the 33-bus system with the CP load model at different load levels.

Load level	Method	Optimal siting and sizing in kVAr	Total kVAr	Total kVAr demand
Light 50%	SOSc	(13, 191.51); (25, 200.72); (30, 516.28)	908.51	1150
	SQI-SOSc	(13, 191.48); (25, 200.85); (30, 516.33)	908.67
	SOS	(14, 200); (25, 200); (30, 500)	900
	SQI-SOS	(14, 200); (25, 200); (30, 500)	900
Medium 75%	SOSc	(13, 295.44); (25, 200.72); (30, 789.82)	1285.99	1725
	SQI-SOSc	(13, 295.42); (25, 200.85); (30, 789.84)	1286.11
	SOS	(14, 300); (25, 200); (30, 800)	1300
	SQI-SOS	(14, 300); (25, 200); (30, 800)	1300
Full 100%	SOSc	(13, 325.37); (25, 200.72); (30, 900.73)	1426.84	2300
	SQI-SOSc	(13, 325.37); (25, 200.85); (30, 900.75)	1426.97
	SOS	(14, 300); (25, 200); (30, 900)	1400
	SQI-SOS	(14, 300); (25, 200); (30, 900)	1400
Final optimal ratings (location and size) by proposed approach	SOS	Fixed: (14, 200); (25, 200); (30, 500); Switched: (14, 100); (30, 400)
	SQI-SOS	Fixed: (14, 200); (25, 200); (30, 500); Switched: (14, 100); (30, 400)