A Newton-Based Extremum Seeking MPPT Method for Photovoltaic Systems with Stochastic Perturbations

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="938526.fig.0011a" src="https://static.hindawi.com/articles/ijp/volume-2014/938526/figures/938526.fig.0011a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Power</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="938526.fig.0011b" src="https://static.hindawi.com/articles/ijp/volume-2014/938526/figures/938526.fig.0011b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Voltage</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="938526.fig.0011c" src="https://static.hindawi.com/articles/ijp/volume-2014/938526/figures/938526.fig.0011c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Current</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="938526.fig.0011d" src="https://static.hindawi.com/articles/ijp/volume-2014/938526/figures/938526.fig.0011d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>Duty cycle</td></tr></table></td></tr></table>

<table>Simulation results of the proposed MPPT method under uniform irradiance of 800 W/m<sup>2</sup> at 25°C.</table>

International Journal of Photoenergy

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Figure 11

Figure 11: A Newton-Based Extremum Seeking MPPT Method for Photovoltaic Systems with Stochastic Perturbations 