Demonstration of Synchronous Motor Start by Rotor Polarity Inversion

@article{PrezLoya2018DemonstrationOS,
  title={Demonstration of Synchronous Motor Start by Rotor Polarity Inversion},
  author={J. J. P{\'e}rez-Loya and C. J. D. Abrahamsson and F. Evestedt and U. Lundin},
  journal={IEEE Transactions on Industrial Electronics},
  year={2018},
  volume={65},
  pages={8271-8273}
}
Synchronous motors are reliable and efficient, but it is relatively difficult to start them. In some cases, a variable frequency drive is utilized. In some other, asynchronous start is achieved by virtue of induced currents in a solid rotor, or a rotor damper cage installed for this purpose. In this contribution, a method to start a synchronous machine without a damper cage is presented. The starting was achieved by inverting the polarity of the rotor field winding in a timely manner with… Expand
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