Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Thrust Analysis and Experiments on Low-Speed Single-Sided Linear Induction Motor

  • Jeong, Jae-Hoon (Dept. of Electrical Engineering, Chungnam National University) ;
  • Choi, Jang-Young (Dept. of Electrical Engineering, Chungnam National University) ;
  • Sung, So-Young (Dept. of Offshore Plant Research Division, Korea Research Institute of Ships and Ocean Engineering) ;
  • Park, Jong-Won (Dept. of Offshore Plant Research Division, Korea Research Institute of Ships and Ocean Engineering) ;
  • Lim, Jaewon (Dept. of Magnetic Levitation and Linear Drive, Korea Institute of Machinery and Materials)
  • Received : 2016.03.05
  • Accepted : 2016.08.13
  • Published : 2017.01.02
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Abstract

When the characteristics of a linear induction motor (LIM) are analyzed using finite element analysis (FEA), it is desirable to set the voltage source as an input. If the voltage source is set as an input in FEA, the leakage inductance and primary resistance of the equivalent circuit must be entered by direct calculation, and the magnetizing inductance and secondary reaction effects are directly considered in FEA. Exact calculation is necessary because the primary winding resistance and leakage inductance directly entered will have a significant effect on the LIM output. Therefore, in this study, we accurately calculated the primary leakage inductance and analyzed the resulting LIM characteristics. We calculated the leakage inductance using an analytical equation and FEA, and we confirmed the accuracy by comparing the results with the value experimentally calculated using a manufactured model. We also analyzed the instrument performance and thrust of the LIM as a function of the difference in the leakage inductance. Finally, we present the conclusions on the precise analysis based on the calculation of the leakage inductance.

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References

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