Investigation of the sensorless capability of an Induction Motor with intentionally created saliency. Simulations and measurements

Field Oriented strategy for induction motor control are usually realized with position and speed sensors, that are expensive and are a source of fault. Sensorless drives are a good solution to avoid these disadvantages, but to implement this type of drive on induction motor there are no valid large scale industrial solution. In this thesis work, a new model for induction motor sensorless application is considered and the industrial construction feasibility of the motor is analyzed. At rst, new conception induction motor rotors are analyzed with nite elements simulation. In order to validate the results of simulations, a prototype has been realized and a series of measurements has been performed. In addiction a rotor sensorless capability optimization is carried out