A Novel Model-Free Intelligent Proportional-Integral Supertwisting Nonlinear Fractional-Order Sliding Mode Control of PMSM Speed Regulation System

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Control strategies</td><td class="align_center">Sudden increase in external load at 0.3 s</td><td class="align_center">Sudden decrease in external load at 0.5 s</td></tr><tr class="thead"><td class="align_center">Impact rate of fluctuation (%)</td><td class="align_center">Impact rate of fluctuation (%)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Traditional MF-iPI-SMC</td><td class="align_center">7.81</td><td class="align_center">8.17</td></tr><tr><td class="align_left">MF-iPI-FOSMC</td><td class="align_center">1.21</td><td class="align_center">1.47</td></tr><tr><td class="align_left">MF-iPI-NLFOSMC</td><td class="align_center">1.24</td><td class="align_center">1.07</td></tr><tr><td class="align_left">MF-iPI-ST-NLFOSMC</td><td class="align_center">0.83</td><td class="align_center">0.69</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The comparison of resistance to external disturbances.</div>

Complexity

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Table 6

Table 6: A Novel Model-Free Intelligent Proportional-Integral Supertwisting Nonlinear Fractional-Order Sliding Mode Control of PMSM Speed Regulation System 

Table 6 | A Novel Model-Free Intelligent Proportional-Integral Supertwisting Nonlinear Fractional-Order Sliding Mode Control of PMSM Speed Regulation System 