Design of MPPT Algorithm for Solar Charge Controller to Efficiency Improvement for PSC Condition | Original Article

ABSTRACT:

Maximum power point trackers (MPPTs) play an important role in photovoltaic (PV) power systems because it maximize the power output from a PV system for a given set of conditions, and therefore maximize the array efficiency. Thus, an MPPT can minimize the overall system cost. MPPTs find and maintain operation at the maximum power point, using an MPPT algorithm. Many such algorithms have been proposed. A maximum power point tracking (MPPT) is used for extracting the maximum power from the solar PV module as described in the present work. In practical application solar cells are usually influenced by partially shaded conditions (PSC). There is a bypass diode that prevents damage to the solar cell, which causes the P-V characteristic curve to have multiple peak values. As the traditional MPPT technology only tracks local maximum value, techniques which can find the global maximum value should be developed to maintain MPPT.