Fig. 16

An MPPT Approach during rapid decrease of solar irradiation: (a) VSS-P&O method in case of positive ΔP and ΔV, (b) Modified VSS-P&O method in case of positive ΔP and ΔV, (c) VSS-P&O method in case of positive ΔP and negative ΔV, and (d) Modified VSS-P&O method in case of positive ΔP and negative ΔV.