A New Sensorless MRAS Based on Active Power Calculations for Rotor Position Estimation of a DFIG

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="970364.fig.006a" src="https://static.hindawi.com/articles/ape/volume-2011/970364/figures/970364.fig.006a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>The <svg height="14.7125" id="M56" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 36.674999 14.7125" width="36.674999" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝑀</tspan>
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<table>Real (R) and estimated (E) position for rated current and <svg height="14.7125" id="M55" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 36.674999 14.7125" width="36.674999" xmlns="http://www.w3.org/2000/svg">
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Advances in Power Electronics

fig6

Figure 6

Figure 6: A New Sensorless MRAS Based on Active Power Calculations for Rotor Position Estimation of a DFIG 