Behavior of Line Start Permanent Magnet Synchronous Motor under Short Interruptions

Line start permanent magnet synchronous motors are attracting growing attention for high duty factor industrial applications. Power quality has become a major concern in today's electric utility industry. More than 80 % power quality related problems are concerned with voltage sags and power interruptions. Investigation of the performance of these motors under practical supply conditions facing power quality problems is the need of time. In this paper the 5 h.p. LSPMSM performance under short interruptions is investigated through simulation studies. The effect of parameter variation on motor performance is also studied using dynamic Simulink model.