Technical and Economical Assessment of the Efficiency Improvement of Induction Motors after Rewinding

Document Type : Original Article

Authors

1 babol noshirvani university of technology

2 Electrical and Computer Engineering Department, Babol Noshirvani University of Technology, Babol, Iran

Abstract

Increasing the efficiency of motors has a significant effect on their energy saving consumption. By calculating the annual energy consumption of a motor, the effect of increasing the efficiency on energy savings can be estimated. One of the most effective and inexpensive ways to increase the energy efficiency of motors is rewinding or redesigning the stator winding. Cost savings and reducing energy consumption by rewinding motors can attract investors' attention. In this paper, a single-phase induction motor with 0.75 horsepower, Rewinded for three-phase operation, and electromagnetic analysis of finite element method was performed using Flux software and its operation characteristics have been analysed. Economic analysis including operating costs, payback period and annual energy savings are also calculated. According to the results, the efficiency of the three-phase rewinded motor compared with the single-phase induction motor, increased about 12.5%, and the payback period based on 13 cents per kilowatt-hour was about one years. Based on the comparison, replacing a single-phase induction moto with the three-phase rewinded motor by standard efficiency (IE1) is economical than replacing motor in this class of efficiency and cost saving in full load achieve about 61$. For validation, the experimental results were compared with the simulation results and measurement error of about 6% was observed.

Keywords

References

   [1]      F. J. Ferreira, B. Leprettre, and A. T. De Almeida, "Comparison of protection requirements in IE2-, IE3-, and IE4-class motors," IEEE Transactions on Industry Applications, vol. 52, no. 4, pp. 3603-3610, 2016.##
   [2]      X. Wang, H. Zhong, Y. Yang, and X. Mu, "Study of a novel energy efficient single-phase induction motor with three series-connected windings and two capacitors," IEEE Transactions on Energy Conversion, vol. 25, no. 2, pp. 433-440, 2010.##
   [3]      S. Vaez-Zadeh and H. Langari, "High average-low pulsating torque operation of single phase induction motors," in Industry Applications Conference, 2000. Conference Record of the 2000 IEEE, 2000, vol. 3, pp. 1513-1518: IEEE.##
   [4]      M. Dems, K. Komeza, and H. G. Rodríguez, "Methods for increasing the efficiency of an asynchronous motor with increased speed fed from the PWM inverter," International Journal of Applied Electromagnetics and Mechanics, no. Preprint, pp. 1-11, 2018.##
   [5]      J. C. Hirzel, "Impact of rewinding on motor efficiency," in Pulp and Paper Industry Technical Conference, 1994., Conference Record of 1994 Annual, 1994, pp. 104-107: IEEE.##
   [6]      M. Dems and K. Komeza, "The influence of electrical sheet on the core losses at no-load and full-load of small power induction motors," IEEE Transactions on Industrial Electronics, vol. 64, no. 3, pp. 2433-2442, 2017.##
   [7]      D. C. Montgomery, "The motor rewind issue-a new look," IEEE transactions on Industry Applications, no. 5, pp. 1330-1336, 1984.##
   [8]      S. S. OFA, "United States Industrial Electric Motor Systems Market Opportunities Assessment," 2002.##
   [9]      H. Penrose and B. Bauer, "Time savings and energy efficiency through alternate electric motor rewind methods," in Proceedings: Electrical Electronics Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1995, pp. 457-460: IEEE.##
[10]      H. W. Penrose, "Anatomy of an energy efficient electric motor rewind," IEEE Electrical Insulation Magazine, vol. 13, no. 1, pp. 14-19, 1997.##
[11]      V. Aguiar, R. Pontes, and F. Ferreira, "Technical and Economic Evaluation of Efficiency Improvement after Rewinding in Low-Power Induction Motors: A Brazilian Case," Energies, vol. 11, no. 7, p. 1701, 2018.##
[12]      M. Al-Badri, P. Pillay, and P. Angers, "Simple and Accurate Algorithm for Small-and Medium-Sized Three-Phase IM Efficiency Estimation Based on No-Load Tests," IEEE Transactions on Industry Applications, vol. 54, no. 6, pp. 5812-5821, 2018.##
[13]      C. Wenping and K. J. Bradley, "Assessing the impacts of rewind and repeated rewinds on induction motors: is an opportunity for Re-designing the machine being wasted?," IEEE Transactions on Industry Applications, vol. 42, no. 4, pp. 958-964, 2006/07 2006.##
[14]      F. J. Ferreira and A. T. De Almeida, "Induction motor downsizing as a low-cost strategy to save energy," Journal of Cleaner Production, vol. 24, pp. 117-131, 2012.##
[15]      N. Bianchi, S. Bolognani, M. D. Pre, and G. Grezzani, "Design considerations for fractional-slot winding configurations of synchronous machines," IEEE transactions on industry applications, vol. 42, no. 4, pp. 997-1006, 2006.##
[16]      K. Komeza and M. Dems, "Finite-element and analytical calculations of no-load core losses in energy-saving induction motors," IEEE Transactions on Industrial Electronics, vol. 59, no. 7, pp. 2934-2946, 2012.##
[17]      D. D’Aguanno, F. Marignetti, and F. Faginoli, "Single-Phase Motors for Household Applications," in Electric Machines for Smart Grids Applications-Design, Simulation and Control: IntechOpen, 2018.##
[18]      D. P. Kothari and I. Nagrath, Electric machines. Tata McGraw-Hill Education, 2004.##
[19]      T.-H. Liu, "A maximum torque control with a controlled capacitor for a single-phase induction motor," IEEE Transactions on Industrial Electronics, vol. 42, no. 1, pp. 17-24, 1995.##
[20]      C. Mademlis, I. Kioskeridis, and T. Theodoulidis, "Optimization of single-phase induction Motors-part I: maximum energy efficiency control," IEEE Transactions on Energy Conversion, vol. 20, no. 1, pp. 187-195, 2005.##
[21]      A. T. De Almeida, F. J. Ferreira, and J. A. Fong, "Standards for efficiency of electric motors," IEEE Industry Applications Magazine, vol. 17, no. 1, pp. 12-19, 2011.##
[22]      S. K. Fuller and S. R. Petersen, "Life-cycle costing manual for the Federal Energy Management Program. 1995 edition. Handbook," 1996.##
[23]      C. T. de Castro Andrade and R. S. T. Pontes, "Economic analysis of Brazilian policies for energy efficient electric motors," Energy Policy, vol. 106, pp. 315-325, 2017.##
[24]      J. C. Andreas, "Energy-efficient electric motors: selection and application," 1982.##
[25]      M. G. Kahrisangi, A. H. Isfahani, S. Vaez-Zadeh, and M. R. Sebdani, "Line-start permanent magnet synchronous motors versus induction motors: A comparative study," Frontiers of electrical and electronic Engineering, vol. 7, no. 4, pp. 459-466, 2012.##
Applied Electromagnetics
Volume 8, Issue 1 - Serial Number 20
September 2020
Pages 17-26

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History

  • Receive Date: 26 August 2019
  • Revise Date: 13 November 2019
  • Accept Date: 14 June 2020

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