| Abstract |
This paper presents an original control strategy for Doubly Fed Induction Machine (DFIM) which both stator and rotor circuits are connected to individual Pulse Width Modulation (PWM) voltage source inverters. This configuration reduces the power converters size. We adopt the general Field Oriented Control (FOC) theory to a certain non linear strategy: Variable Struture Control (VSC), called also the Sliding Mode Control. To control the power exchanges between the stator and rotor sides of the machine, the authors adapt a power distribution constraint between the stator and the rotor windings. A flux model is presented and applied to this VSC strategy. The DFIM speed is also guaranteed by a Sliding Mode Control. The quasi-experimental results obtained by SABER software, are presented to validate this control strategy. The VSC robustness is also presented by introducing some DFIM parameters changing. |
