Nonintrusive efficiency estimation for large power and high voltage induction motors

@article{Zhao2017NonintrusiveEE,
  title={Nonintrusive efficiency estimation for large power and high voltage induction motors},
  author={Haisen Zhao and Pengyu Li and Geng Chen and Yilong Wang and Yang Zhan and Guorui Xu and Xiaofang Liu},
  journal={2017 IEEE Energy Conversion Congress and Exposition (ECCE)},
  year={2017},
  pages={786-793}
}
Nonintrusive efficiency evaluation method based on the air gap torque and rotor slot frequency is generally used in industry application. However, this method has the following problems: 1) the number of rotor slots should be given in advance; 2) with some special number of pole pairs and rotor slots, the stator and rotor slot harmonics may be aliasing, which may lead to great errors in identification results; 3) the solution of air gap torque needs a complicated solving procedure for flux… CONTINUE READING

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