Research on Direct Drive Technology of the Permanent Magnet Synchronous Motor for Urban Rail Vehicles

<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">Energy consumption</td><td class="align_center">PMSM direct drive</td><td class="align_center">Asynchronous motor gear mechanism</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Traction energy</td><td class="align_center">10.84</td><td class="align_center">11.55</td></tr><tr><td class="align_left">Braking energy</td><td class="align_center">5.87</td><td class="align_center">5.61</td></tr><tr><td class="align_left">Total energy</td><td class="align_center">4.96</td><td class="align_center">5.94</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comparison of energy data of PMSM direct drive and asynchronous motor gear mechanism on Suzhou Metro line 3 (kWh/km).</div>

Mathematical Problems in Engineering

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Table 6

Table 6: Research on Direct Drive Technology of the Permanent Magnet Synchronous Motor for Urban Rail Vehicles 