Fuzzy Sliding Mode Method for Speed regulation of a Dual Star Induction Machine Drive fed by Multi-level Inverters

This paper presents a robust fuzzy-sliding mode control (FSC) technique for speed control of a drive system based on dual star induction machine (DISM). The machine is fed by two multilevel voltage source inverters (MLVSI) and its control is achieved using a fuzzy-sliding mode controller combined with the indirect field oriented control (IFOC) technique. The MLVSI technology has recently emerged and applied to DC-AC conversion to obtain sinusoidal waveform and to fulfill different applications constraints such as: high power conversion, power segmentation and power control. The FSC has many advantages, such as: fast response good robustness, high efficiency and suppressed chattering phenomenon. The presented study is validated by a series of simulation results showing the main responses of the drive system in case of different operating conditions. Also, the proposed FSC controller is compared to the classical PI controller and demonstrated superior performances.