Estudo do sistema de acionamento do motor síncrono a ímã permanente com partida direta a rede elétrica.

Abstract

Rotor position estimation for Permanent-Magnet Synchronous Motors (PMSM) is important investigation area due to the increasing application of synchronous machines in industrial environment, hybrid vehicles, electric vehicles and wind-energy generation. Highperformance applications of AC machines demand the knowledge or estimation of parameters such as magnetic flux, speed and rotor position. For this scenario, it is important the study of strategies for rotor position/speed estimation aiming the self-sensing control of the motor. This Project presents the study of speed control system for a PMSM motor. A preliminary study of rotor position estimation techniques based on high-frequency injection is addressed suitable for low-speed applications. Simulation results for speed control operation and mechanical load variation are presented.