Sensorless direct vector control of an induction motor

PI tuning of five-phase drives with third harmonic injection

“…The parameters to be chosen by the control designer are the PI gains K p and K i and either the value of the ratio k 3 for CTHI or the gain g i for a proportional VTHI and an estimation of the rotor time constantT r1 , which is an important factor for IFOC performance (Menaa et al, 2008;Roncero-Sá nchez, García-Cerrada, & Feliu-Batlle, 2007). In this paper a simpler scheme of IFOC is used where the rotor time constant is estimated off-line and kept unchanged during operation.…”

Design and comparison of state-feedback and predictive-integral current controllers for active- and reactive-power control in renewable energy systems

“…Finally, another application which uses current-controlled voltage-source electronic converters can be found in Menaa, Touhami, Ibtiouen, and Fadel (2008).…”

Reduced-Order Sliding Mode Observer-based Speed Sensorless Vector Control of Double Stator Induction Motor

“…In contrast, the voltages equations v sd1 ,v sq1 ,v sd2 and v sq2 show undesired coupling, which requires the use of a decoupling circuit during the implementation of the field oriented control [11]- [16]. …”

“…Currently, applications of this strategy to double stator induction motors (DSIM) are largely unexplored and involve only a few research laboratories. For example reduced-order observer has been applied to IMs for speed sensorless control [10][11], for speed and flux sensorless control [12] and, later, for speed and/or flux sensorless control of DSIM [13][14]. However, some limitations on operation of conventional observers were large chattering on the speed, which very low speeds quickly highlighted.…”