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An accurate estimation of the series resistance in the PV model is crucial to the prediction of the maximal output power of the PV module, especially under temperature variation. This Paper proposes a theoretical expression to calculate accurately the value of this resistance. The proposed expression comes from the physical nature of the various elements constructing this resistance, plus the reverse...
This paper proposes an improved computational method to estimate the parameters of the single diode RP model for PV modules. The approach utilized the Differential Evolution (DE) algorithm to accurately determine the values of the photocurrent (IPV), saturation current (Io), ideality factor (a), series resistance (Rs) and the shunt resistance (Rp). In addition, the model performance is enhanced by...
This paper describes the adaptive perturb and observe (P&O) MPPT controller based on a sectionalized piece-wise linearization of the P-V curve. The algorithm divides the curve into three non-uniform sections, depending on the location of the maximum power point (MPP). Furthermore, the step size (M) is varied linearly according to the slope of the P-V curve. This results in high tracking speed...
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