Abstract
A fuzzy logic based photovoltaic controller for shaded photovoltaic power generation is proposed based on P&O MPPT method. To obtain stable operation and maximum output, the parameters of fuzzy logic controller is adjusted in real time for various shaded conditions. The performance of proposed method of fuzzy controller is examined and validated using MATLAB/Simulink environment.
Highlights
A fuzzy logic based photovoltaic controller for shaded photovoltaic power generation is proposed based on P&O MPPT method
Equation (1) is the diode current equation, practical PV cell can be modeled as diode parallel with current source along with series and shunt resistances shown in fig
In this paper the standard cell SX-3190W of BP Solar Manufacturer [13]is considered. As it is shown in fig.4 a set of such PV cell are arranged in series and parallel combinations with partial shadings
Summary
Renewable energy sources have become important part of energy power generation. In [9] the use of Incremental conductance method is presented Heuristic methods such as Genetic Algorithm and Revisited Perturbation Frequency are discussed[10],[11] and have problem like local minimum problem and lack of convergence. In this paper P&O based fuzzy logic controller[12] for shaded solar power generation is proposed and implemented. Equation (1) is the diode current equation, practical PV cell can be modeled as diode parallel with current source along with series and shunt resistances shown in fig.. The current in equation (1) can be modified after connecting load with series and shunt resistances as (2)
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