Engineering Commons^™

Étude Des Processus Ondulatoires Et Des Surtensions Dans Les Moteurs Asynchrones Alimentés Par Des Convertisseurs À Semi-Conducteurs, Mohand Tahar Belassel

Boukhemis Chetate

This work concerns the survey of undulatory processes and over voltages in the asynchronous machines fed by semiconductor frequency converters which are controlled by PWM strategy type. It includes the different stages of usual calculation of electric machines, with explanation of certain construction particularities of the asynchronous machine fed by frequency converters. It emphasises the calculation of the undulatory parameters and the undulatory voltage determination in any point of the asynchronous machine winding for different time periods. The calculation of the undulatory parameters with the geometric method requires the knowledge of the machine geometric measurements and the development of equivalent …