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NEW PWM METHOD BASED ON FLUX-LINKAGE TRAJECTORY CONTROL
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| Author(s) |
Zheng-Tang Yang; Guo-Hai Liu |
| Abstract |
Based on flux-linkage trajectory control principle, a new pulse-width modulation (PWM) switching strategy is presented. By using modes of the "180-degree-on" and "120-degree-on" alternately, it has 12 voltage vectors, double of the conventional one. It is shown that this strategy makes the flux amplitude error between the practical flux-linkage trajectory and the ideal one much smaller. By spliting zero voltage vectors and scattering them in the non-zero voltage period, the more accurate control of rotating speed of the flux-linkage vectors can be achieved. Simulation results have demonstrated that the PWM strategy presented is superior to the conventional one. |
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| Filename: | Unnamed file |
| Filesize: | 2.466 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-16 by System |
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