Multicore PSO Operation for Maximum Power Point Tracking of a Distributed Photovoltaic System under Partially Shading Condition

Table 8

Tracking time and error for the proposed multicore PSO MPPT operation: simulation versus experiment.

PV format: P: parallel; S: series	Tracking method (core number)	Average tracking time in sec	Tracking steps	Tracking error (%) without shading	Tracking error (%) with partial shading
2P2S	PSO ()	1.15	57.7	1.27	2.17
		Simulation	60.1	1.15	1.1
	PSO ()	0.71	35.5	0.79	1.44
		Simulation	41.5	0.78	0.47
4S	PSO ()	1.27	63.3	1.70	1.60
		Simulation	62.2	1.36	1.28
	PSO ()	0.76	38.1	1.62	6.90
		Simulation	40.8	1.31	2.52
2P4S	PSO ()	1.25	62.3	0.79	2.21
		Simulation	138.3	1.27	0.98
	PSO ()	1.11	55.5	2.24	3.1
		Simulation	70	0.8	0.9
	PSO ()	1.06	53	0.75	2.34
		Simulation	46.7	1.19	1.35