Analysis of Torque Ripple Reduction in Induction Motor DTC Drive with Multiple Voltage Vectors
This paper shows an analysis of torque ripple reduction in modified DTC algorithm by using multiple voltage vectors with the appropriate multilevel hysteresis controller. A short theoretical background of classical and proposed DTC algorithm was given at the beginning. Experimental results of the...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Stefan cel Mare University of Suceava
2015-02-01
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| Series: | Advances in Electrical and Computer Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.4316/AECE.2015.01015 |
| Summary: | This paper shows an analysis of torque ripple reduction in modified DTC algorithm by using multiple voltage vectors with the appropriate
multilevel hysteresis controller. A short theoretical background of classical and proposed DTC algorithm was given at the beginning.
Experimental results of the proposed DTC algorithm, implemented on digital signal processor F2812, were analysed in comparison with
classical DTC. It is shown that the torque ripple can be reduced by selecting voltage vectors with an appropriate intensity. Motor
current oversampling was used to analyse the estimated torque behaviour during one DSP sampling period. Furthermore, the analysis
of torque ripple reduction with oversampled torque values was conducted in relation to the number of available voltage vectors.
The analysis shows that the proposed DTC algorithm allows significant torque ripple reduction while retaining the simplicity,
small computational burden and good dynamic characteristics of the classical DTC. |
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| ISSN: | 1582-7445 1844-7600 |