Matrix Converters are becoming popular in industrial applications due its better performance than the conventional VSI converters. The advantages of Matrix Converters are bidirectional current flow, adjustable displacement angle and sinusoidal input current and output voltage. Two control schemes used to control the speed of Induction motor. They are Field Oriented Control and Direct Torque Con...

This article presents a modeling and control of the Doubly Fed Induction Motor (DFIM), associated with two inverters controlled through Pulse Width Modulation technique (PWM), DFIM is carried out by approach Rotor Flux Oriented Control (RFOC) according to direct axis. In this approach, regulation done classic PI regulators, latter having undesirable overruns static errors in non-linear systems,...

Over the past years, thanks to the systematic use of digital microprocessors in industry, we have seen a very significant development in the regulation controls of the asynchronous machine. The latter is widely used in industry for its diversity of use and its ability to withstand great variations in its nominal regime. Currently, several types of control are proposed. Nonlinear controls such a...

The influence of the rotor time constant mismatch on the stability of induction motors under indirect field-oriented control is analyzed. The results of [14] are generalized. A Lyapunov function which provides a global stability test and allows us to compute robustness margins is given. Different mechanisms for the loss of stability are detected by means of bifurcation analysis. Robustness marg...

In this paper, a flexible, high computation speed and cost effective field programmable gate array (FPGA)-based speed controller for an induction motor with field-oriented control, (FOC) is presented. All the control functions including the space vector modulation based PWM waveform generation, field-oriented control algorithm and rotor flux position estimation have been realized using FPGA to ...

Two different nonlinear dynamic control algorithms are presented for synchronous motors with damping windings: (i) an adaptive speed-sensorless controller for rotor position tracking in the presence of unknown constant load torque, on the basis of rotor angle, stator and field windings currents measurements; (ii) an adaptive control law for rotor speed tracking in the presence of uncertain cons...

This paper presents a fuzzy logic based speed control system for a current source PWM inverter fed indirect field oriented control of induction motors (IM). In this work the conventional PI controller is replaced by fuzzy based intelligent controller. The fuzzy logic controller employs different types of membership functions for each parameter for the efficient control of the drive system. The ...