Frequency Regulation and Coordinated Control for Complex Wind Power Systems

<figure class="figure-group responsive"><div class="sub-figure" id="a"><object data="https://static.hindawi.com/articles/complexity/volume-2019/8525397/figures/8525397.fig.009a.svgz" name="8525397.fig.009a" type="image/svg+xml"></object><div class="fig-label">(a) Frequency variation</div></div><div class="sub-figure" id="b"><object data="https://static.hindawi.com/articles/complexity/volume-2019/8525397/figures/8525397.fig.009b.svgz" name="8525397.fig.009b" type="image/svg+xml"></object><div class="fig-label">(b) Output of synchronous generators</div></div><div class="sub-figure" id="c"><object data="https://static.hindawi.com/articles/complexity/volume-2019/8525397/figures/8525397.fig.009c.svgz" name="8525397.fig.009c" type="image/svg+xml"></object><div class="fig-label">(c) Output of DFIG-based wind turbine</div></div><div class="sub-figure" id="d"><object data="https://static.hindawi.com/articles/complexity/volume-2019/8525397/figures/8525397.fig.009d.svgz" name="8525397.fig.009d" type="image/svg+xml"></object><div class="fig-label">(d) Pitch angle variation</div></div></figure>

<p>Simulation diagram of the power constant area when frequency variation is less than 0.2Hz.</p>

Complexity

fig9

Figure 9

Figure 9: Frequency Regulation and Coordinated Control for Complex Wind Power Systems 