Sliding Mode Control of a Double Star Asynchronous Machine

Abstract

For high power applications, multiphase machines are increasingly used for reasons of reliability and power segmentation. We propose here to study the most common example of multiphase machines, the double star asynchronous machine (DSAM). This paper, firstly, presents the modelling of the DSAM based on the transformation of the Park, which is very important for the study, analysis and simulation of the machine control. The DSAM is powered by two inverters through two voltage sources. In order to improve the performance of the system to be controlled, a robust control technique was applied, namely the sliding mode control. This control technique allows to exploit the robustness, the speed and the flexibility of the sliding mode during the transient and the permanent regime.