Frontiers of Electrical and Electronic Engineering >

2012 , Vol. 7 >Issue 4: 459 - 466

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

RESEARCH ARTICLE

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

  • Majid Ghasemi KAHRISANGI 1 ,
  • Arash Hassanpour ISFAHANI , 2 ,
  • Sadegh VAEZ-ZADEH 3 ,
  • Mohammad Rajabi SEBDANI 4
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  • 1. SAMA Technical and Vocational College, Islamic Azad University, Khomeinishahr Branch, Isfahan, Iran
  • 2. Department of Engineering, Islamic Azad University, Khomeinishahr Branch, Isfahan, Iran
  • 3. School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran
  • 4. Department of Engineering, Islamic Azad University, Harand Branch, Isfahan, Iran

Received date: 12 Apr 2012

Accepted date: 08 Oct 2012

Published date: 05 Dec 2012

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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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.

Key words： line-start permanent magnet synchronous motors; induction motor; steady-state; dynamic; comparison; finite element method

Cite this article

Majid Ghasemi KAHRISANGI , Arash Hassanpour ISFAHANI , Sadegh VAEZ-ZADEH , Mohammad Rajabi SEBDANI . Line-start permanent magnet synchronous motors versus induction motors: A comparative study[J]. Frontiers of Electrical and Electronic Engineering, 2012 , 7(4) : 459 -466 . DOI: 10.1007/s11460-012-0217-8

Acknowledgements

The authors wish to thank SAMA Technical and Vocational College, Islamic Azad University, Khomeinishahr Branch, for partial support of this work.

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