MPPT Algorithms for Photovoltaic SystemsPankaj S. Jadhav M. Tech (E&I)

National Institute of Technology, Rourkela

How Does PV works?

• The photovoltaic cell is basic component of PV system.

• Converts solar enrgy to electric energy.directly

• In essence, sunlight on a solar

cell creates a small battery with voltages typically 0.5 v.

Iph

Combining Solar Cells

• Much higher voltage is required for practical application

How Peak Power Is Tracked?

• By matching impedance of loadand solar module

• Dc-Dc converter is used as interface between solar module and load for impedance matching

Methods for obtaining Peak Power

• Manual tracking is waste of time• MPPT Algorithms are used for

automatic peak power tracking

MPPT Algorithms

Conclusion:

P&O ALGORITHM

INC ALGORITHM

• PV system getting more significance due toshortage and environmental impact of conventional fuels.

• P&O algorithm is simple to implement since • no previous knowledge of PV module

required.• INC works good under rapidly changing

environment condition and also achievesa decrease in oscillation at MPP.Controlled MPPT PV system