An Adaptive Photovoltaic Topology to Overcome Shading Effect in PV Systems

Table 1

Comparison of shading losses between traditional system and the proposed system.

Number of shaded modules	Pmax normal (no shading) =		173.31
	Pmax W traditional system	Pmax W adaptive system	Losses in traditional system	Losses in adaptive system
One	133.50	149.30	23%	14%
Two from the same string	88.50	152.16	49%	12%
Two from different strings	105.12	141.74	39%	18%
Three from different strings	62.31	143.35	64%	17%
Four (two from each string)	39.50	139.76	77%	19%