Abstract:
Maximum power point (MPP) tracking (MPPT) techniques are widely used in
photovoltaic (PV) systems to build PV array generate peak power which depends on solar
irradiatio n. In this paper, an improved dP P&O MPPT algorithm is developed base d on solar
irradiation modeling. This algorithm aims to overcome the confusion in the direction of tracking
during rapidly changing solar irradiance using half sine wave modeling of solar irradiation. The
proposed algorithm gives fast tracking compared to existing dP P&O method. Operation point of
the photovoltaic system is controlled via a boost type DC DC converter. The complete system is
modeled and simulated in the MATLAB using SIMULINK. T he proposed MPPT and existing dP
P&O MPPT algorithms are simulate d and the performance comparison is made. Simulation result
shows that the proposed algorithm is faster than the dP P&O algorithm.
