single-phase squirrel cage and three-phase induction electromotors are the most popular electromotors used in industry from long ago. when an induction motor starts with direct connection method, it takes a lot of current from the power supply (several times the nominal current); so, several methods have been devised to start such electromotors. these methods either reduce the voltage of the st...

This paper develops an inner stator current controller based on enhanced reaching-law-based discrete-time terminal sliding mode. The problem of tracking currents with high accuracy while ensuring the robustness a six-phase induction motor in presence uncertain electrical parameters and unmeasurable states is tackled. unknown dynamics are approximated by using time delay estimation method. Then,...

The results of the research on control high-speed and lowspeed six-phase synchronous reluctance motor are presented in this paper. Two variants SynRM considered: two galvanically isolated three-phase windings one winding connected wye. mathematical description, models, synthesis systems for considered given. problems encountered by authors ways their solution presented. practical comparison con...

A modified approach, involving the addition of a low frequency boost voltage, is developed and adopted as an enhancement to the conventional closed loop f v speed control of a three-phase squirrel cage induction motor modeled in the stationary qd reference frame using six-step voltage source inverter waveform. The results obtained show a superior performance in the two basic mechanical characte...

In this paper a new switching technique for Direct Torque Control (DTC) fault tolerant induction motor drive is presented, if one inverter leg is completely lost due to such abnormal condition, this system modifies the switching table of DTC system using the available stator voltage vectors in two phase mode with Four Switch Three Phase Inverter (FSTPI) topology to track the stator flux referen...

AC induction motor (ACIM) is the workhorse of industrial and residential motor applications due to its durability, robustness and reliability. In today’s energy conscious world, driving and controlling the induction motor efficiently are prime concerns. In the proposed scheme the v/f control of 3-phase induction motor uses the advanced VLSI technology that is a unique VLSI chip called Digital S...