Conceptual comparison of Line-Start Permanent Magnet Synchronous ‎and Induction Machines for Line-fed of different conditions

This study presents a comparative analysis of an Induction Machine (IM) and its equal Line-‎Start Permanent Magnet Synchronous Machine (LSPMSM) when they are directly connected ‎to the mains. Simulation results from MATLAB/Simulink software are presented under ‎normal and voltage sag conditions and different load torques, to provide a comprehensive ‎comparison. In addition, the effect of input frequency is evaluated. Different tests in no-load, motoring, and generating modes show a better steady-‎state response of an LSPMSM rather than its IM, if its synchronized problems could be ‎obviated.