Operation of Parallel Inverters in Microgrid Using New Adaptive PI Controllers Based on Least Mean Fourth Technique

<figure class="figure-group responsive"><div class="sub-figure" id="a"><object data="https://static.hindawi.com/articles/mpe/volume-2019/4854803/figures/4854803.fig.009a.svgz" name="4854803.fig.009a" type="image/svg+xml"></object><div class="fig-label">(a) Voltage profile at PCC for unbalanced loads by proposed control</div></div><div class="sub-figure" id="b"><object data="https://static.hindawi.com/articles/mpe/volume-2019/4854803/figures/4854803.fig.009b.svgz" name="4854803.fig.009b" type="image/svg+xml"></object><div class="fig-label">(b) Negative-sequence without using negative control loop</div></div><div class="sub-figure" id="c"><object data="https://static.hindawi.com/articles/mpe/volume-2019/4854803/figures/4854803.fig.009c.svgz" name="4854803.fig.009c" type="image/svg+xml"></object><div class="fig-label">(c) Negative-sequence with using negative control loop</div></div></figure>

<p>Voltage profile and negative-sequence factor with and without using negative control loop.</p>

Mathematical Problems in Engineering

fig9

Figure 9

Figure 9: Operation of Parallel Inverters in Microgrid Using New Adaptive PI Controllers Based on Least Mean Fourth Technique 