Research of MPPT algorithm with stability and rapidity

This paper presents the engineering analytical models of silicon solar cells. The main advantage of the model is four parameters: the short-circuit current (I_SC); the open-circuit voltage (U_OC); the maximum power point current (I_m); the maximum power point voltage (U_m) of a PV module under standard test conditions (STC) provided by manufacturers are only used with some additional coefficients which typical values are given, it is possible to describe any I-V curve, taking into account cell temperature and solar radiation. Maximum power point tracking (MPPT) control method based on models of silicon solar cells was proposed based on the analysis of the photovoltaic cellpsilas V-I characteristic and the ldquoPerturbation and Observationrdquo (P&O). This article realizes the maximum power point tracking by working out U_m and I_m.