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Line-start permanent magnet synchronous motors versus induction motors: A comparative study

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  • Published:
Frontiers of Electrical and Electronic Engineering

Abstract

Line-start permanent magnet synchronous motors are suitable candidates for substitution of induction motors in many constant-speed applications. This paper compares steady-state and dynamic performances of these motors. The efficiency, power factor, stator currents, and rotor bars currents are considered for steady-state performance analysis whereas the rotor speed, electromagnetic torque, and stator and rotor currents are investigated for dynamic performance analysis. For this purpose, time stepping finite element method is used to analyze the performance of motors in both full-load and no-load conditions. Results demonstrate the superior performance of the line-start permanent magnet synchronous motor in steady-state condition and the improved dynamic performance of the induction motor. Finally, economic calculations indicate that the extra cost of the line-start permanent magnet synchronous motor with respect to the induction motor is rapidly compensated by energy saving due to a more efficient operation.

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Authors and Affiliations

  1. SAMA Technical and Vocational College, Islamic Azad University, Khomeinishahr Branch, Isfahan, Iran

    Majid Ghasemi Kahrisangi

  2. Department of Engineering, Islamic Azad University, Khomeinishahr Branch, Isfahan, Iran

    Arash Hassanpour Isfahani

  3. School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran

    Sadegh Vaez-Zadeh

  4. Department of Engineering, Islamic Azad University, Harand Branch, Isfahan, Iran

    Mohammad Rajabi Sebdani

Authors
  1. Majid Ghasemi Kahrisangi
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  2. Arash Hassanpour Isfahani
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  3. Sadegh Vaez-Zadeh
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  4. Mohammad Rajabi Sebdani
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Corresponding author

Correspondence to Arash Hassanpour Isfahani.

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Kahrisangi, M.G., Isfahani, A.H., Vaez-Zadeh, S. et al. Line-start permanent magnet synchronous motors versus induction motors: A comparative study. Front. Electr. Electron. Eng. 7, 459–466 (2012). https://doi.org/10.1007/s11460-012-0217-8

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  • DOI: https://doi.org/10.1007/s11460-012-0217-8

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