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Direct Torque Control with Space Vector Modulation (DTC-SVM) of ...

Direct Torque Control with Space Vector Modulation (DTC-SVM) of ...

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DSP implementation <strong>of</strong> <strong>DTC</strong>-<strong>SVM</strong> control<br />

Figure 7.22. Experimental start up and breaking to zero speed <strong>of</strong> PMSM motor controlled via<br />

<strong>DTC</strong>-<strong>SVM</strong> <strong>with</strong> the encoder speed signal taken to the feedback ( Ω<br />

m<br />

= 0rpm → 300rpm<br />

). From<br />

the top: 1- reference speed (180rpm/div), 2- measured speed (180rpm/div), 3 - electromagnetic<br />

torque (20Nm/div), 4- motor phase current (20A/div).<br />

Figure 7.23. Experimental speed reversal for PMSM motor controlled via <strong>DTC</strong>-<strong>SVM</strong> <strong>with</strong> the<br />

encoder speed signal taken to the feedback ( Ω<br />

m<br />

=−300rpm → 300rpm<br />

). From the top: 1-<br />

reference speed (360rpm/div), 2- measured speed (360rpm/div), 3 - electromagnetic torque<br />

(20Nm/div), 4- motor phase current (20A/div).<br />

152

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