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Journal of Applied Sciences

Year: 2006 | Volume: 6 | Issue: 3 | Page No.: 572-579
Research Article

Virtual Prototyping in Power Electronics Using VHDL-AMS Application to the Direct Torque Control Optimisation

Ahmed Fakhfakh
Laboratory of Electronics and Technologys Information, National Engineering School of Sfax, Tunisia
Salima Feki
Laboratory of Electronics and Technologys Information, National Engineering School of Sfax, Tunisia
Yannick Herve
CNRS-PHASE, Strasbourg, France
Abdelmajid Walha
Laboratory of Electronics and Technologys Information, National Engineering School of Sfax, Tunisia
Nouri Masmoudi
Laboratory of Electronics and Technologys Information, National Engineering School of Sfax, Tunisia
This study presents a VHDL-AMS modelling of a complex multi-domain system which is a Direct Torque Control (DTC) of an asynchronous machine and exposes some high-level-simulation results allowing a behavioural study using a virtual way. The detail of both ideal and non-ideal behaviour modelling are presented. The study starts with a comparison between MATLAB and VHDL-AMS functional simulations. Then, the study of the effect of several parameter’s variations is exposed; especially the influences of stator resistance, the sampling period and the bit number of A/D converters on the flux and torque behaviour. A VHDL-AMS description presents a good solution to predict system’s performances and can provide sensitivity curves giving the evolution of performances versus generic parameter’s variation.
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References

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