Optimized Maximum Power Point Tracker for fast changing environmental conditions

Dezso Sera, Remus Teodorescu, Jochen Hantschel, Michael Knoll
2008 2008 IEEE International Symposium on Industrial Electronics  
This paper presents a high-performance maximum power point tracker (MPPT) optimized for fast cloudy conditions, e.g., rapidly changing irradiation on the photovoltaic panels. The rapidly changing conditions are tracked by an optimized hillclimbing MPPT method called dP -P&O. This algorithm separates the effects of the irradiation change from the effect of the tracker's perturbation and uses this information to optimize the tracking according to the irradiation change. The knowledge of the
more » ... ion of the irradiation change enables the MPPT to use different optimized tracking schemes for the different cases of increasing, decreasing, or steady irradiance. When the irradiance is changing rapidly this strategy leads to faster and better tracking, while in steady-state conditions it leads to lower oscillations around the MPP. The simulations and experimental results show that the proposed dP -P&O MPPT provides a quick and accurate tracking even in very fast changing environmental conditions.
doi:10.1109/isie.2008.4677275 fatcat:gir452i3r5fkllw62qml66hhzu