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Minimization of Current Harmonics of DTC Controller Using a Suitable Switching Pattern
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| Author(s) |
Faiz J., Sharifian M.B.B.*, Fedák V.** |
| Abstract |
In this paper direct torque control (DTC) technique is used for induction motor control. Because of high switching frequency, non-pulsed width modulation (NPWM) techniques are frequently preferred. Four different switching algorithms using hysteresis and non-hysteresis controllers are proposed and compared. The harmonic spectra of the stator voltage, current and torque are determined and compared in the above techniques. The results indicate that the non-hysteresis controllers have lower initial expense and current cost (consumed power, and current and torque ripples) compared with the hysteresis controllers. Among these algorithms, the non-hysteresis controllers called two-band flux controller and triple-band torque controller lead to a better result with an advantage of simpler control algorithms. |
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| Filename: | EPE-PEMC2000 - 021 - Faiz.pdf |
| Filesize: | 257.7 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-04-28 by System |
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