Generalised Algorithm for Modelling of Solar Photo Voltaic Array under Partial Shadowed Conditions

Generalized algorithm for determining the I
pv
-V
pv
and P
pv
-V
pv
curves at given insolation and temperature of solar photovoltaic (SPV) array, under partial shadow conditions is proposed in this paper. The algorithm is proficient of developing the characteristics of SPV array of any configuration with any kind of shadow pattern. Individual module specifications are also inputted. A MATLAB code is developed for the algorithm and I
pv
-V
pv
and P
pv
-V
pv
curves of a sample system of [4*3] PV array are identified for ten shadow patterns. For each shadow pattern values of V
mp
and P
mp
(voltage and peak power) are also identified using the algorithm, which are further required for peak power point tracking (PPPT).