Direct Surge Margin Control for Aeroengines Based on Improved SVR Machine and LQR Method

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="870215.fig.0012a" src="https://static.hindawi.com/articles/mpe/volume-2013/870215/figures/870215.fig.0012a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Response curves of fan surge margin</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="870215.fig.0012b" src="https://static.hindawi.com/articles/mpe/volume-2013/870215/figures/870215.fig.0012b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Response curves of compressor corrected speed</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="870215.fig.0012c" src="https://static.hindawi.com/articles/mpe/volume-2013/870215/figures/870215.fig.0012c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Response curves of nozzle area</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="870215.fig.0012d" src="https://static.hindawi.com/articles/mpe/volume-2013/870215/figures/870215.fig.0012d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>Response curves of main fuel flow</td></tr></table></td></tr></table>

<table>Effects of the ILQR control at the design point.</table>

Mathematical Problems in Engineering

fig12

Figure 12

Figure 12: Direct Surge Margin Control for Aeroengines Based on Improved SVR Machine and LQR Method 