Flux sliding mode control of a doubly fed induction machine

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 structure 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. The quasi-experimental results are presented to validate this control strategy