Abstract:
This paper proposes a novel maximum power point
tracking algorithm for solar PV system that can work even under
partial shading conditions. The proposed algorithm is easy to implement, does not depend on any system parameters, and always
takes same amount of time for tracking global maximum power
point. The algorithm is based on duty ratio variation rather
than solar PV characteristics for tracking the global maxima.
The propositions are simulated using MATLAB/Simulink and
typical results are presented. It is shown that tracking time
and accuracy can be improved with the variation of switching
frequency and the filter inductor (L) and capacitor (C) values
used in the boost converter. It is further shown that using the
proposed algorithm, global maximum power point with >99%
accuracy can be reached within 1 ms.
