Comparison of Three Analytical Methods for the Precise Calculation of Cogging Torque and Torque Ripple in Axial Flux PM Machines

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/mpe/volume-2016/2171547/figures/2171547.fig.0025a.svgz" name="2171547.fig.0025a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Trapezoidal PM</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/mpe/volume-2016/2171547/figures/2171547.fig.0025b.svgz" name="2171547.fig.0025b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Rectangular PM</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/mpe/volume-2016/2171547/figures/2171547.fig.0025c.svgz" name="2171547.fig.0025c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>T-shape PM</td></tr></table>

<div>PM shapes used for the study of different slices.</div>

Mathematical Problems in Engineering

fig25

Figure 25

Figure 25: Comparison of Three Analytical Methods for the Precise Calculation of Cogging Torque and Torque Ripple in Axial Flux PM Machines 