Ameur , Hadil/Slimene, Yasmine Zohra/ Encadré par Djabri, Riadh2025-06-232025-06-232025-06-10http//localhost:8080/jspui/handle/123456789/12720This thesis is part of the study and control of permanent magnet synchronous motors (PMSMs), machines widely used in modern industrial applications due to their high efficiency, compactness and excellent dynamic behavior. The main objective is to design a robust control capable of maintaining good performance despite model uncertainties and external disturbances. With this in mind, we begin with a presentation of the generalities of PMSMs, addressing their structure, their operating principle, the different types of construction as well as their advantages. Then, a mathematical model is developed from the d-q axis equations in order to obtain a dynamic representation usable for the control. Finally, a robust control strategy using a fractional PID controller is proposed, the latter being optimized to ensure stability, good dynamic performance and strong robustness against parametric variations and external disturbances.encontrol of permanent magnet synchronous motors (PMSMs)