(MPP). By periodically perturbing the voltage and observing the resulting change in power, the algorithm decides whether to increase or decrease the operating voltage. If the power increases, the perturbation continues in the same direction; otherwise, it reverses direction. The perturb and observe method may result in top-level efficiency, provided that a proper predictive and adaptive hill climbing strategy is adopted.

Incremental conductance

In this method, the controller measures incremental current and voltage changes to

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