Application of numerical methods to investigate the influence of long-duaration voltage variations of the distribution grid on the performance characteristics of line-start permanent magnet synchronous motors

Currently, permanent magnet synchronous motors with on-line starting are being increasingly researched and applied to partialy replace squirrel cage asynchronous motors, which are commonly used. The reason is that these motors have many advantages such as high efficiency, and high power factor value, stable speed, higher power density compared to induction motors, and the ability to self-start.