COMPARATIVE ANALYSIS OF TWO HIGH-SPEED SINGLE-PHASE ELECTRICAL MACHINES WITH PERMANENT MAGNETS ON THE STATOR

Authors

  • V. A. Prakht Ural Federal University, Russian Federation
  • V. A. Dmitrievskii Ural Federal University, Russian Federation
  • V. M. Kazakbaev Ural Federal University, Russian Federation
  • S. Kh. Oshurbekov Ural Federal University, Russian Federation

DOI:

https://doi.org/10.20998/2074-272X.2020.2.03

Keywords:

high speed machines, hybrid switched reluctance machine, flux reversal electrical machine, permanent magnet machine, single-phase electrical machine, special electrical machine

Abstract

Purpose. Single-phase machines with permanent magnets on the rotor are widely used in a variety of applications of a low rated power. When these machines are applied in high-speed applications, a retaining ring on the rotor core must be often used. However, it makes the assembly more complex and the high-speed machines become more expensive. On the other hand, machines with magnets on the stator still can be a valuable alternative due to their simple and reliable rotor design. In this paper the comparative study of performances of two single-phase electrical machines with magnets on the stator (flux reversal electrical machine and hybrid switched reluctance machine) is presented. The following performances have been compared: efficiency, weight, active materials cost, value of rated current of switches of the frequency converter. Methodology. Calculation of electrical machines performances using solving two-dimension boundary magnetostatics problems. Results. The theoretical comparison of the flux reversal electrical machine and the hybrid switched reluctance machine has been carried out; the comparison on specific torque and efficiency of the two aforementioned machines have been obtained. The flux reversal machine has a significantly higher efficiency and  a fewer weight. In addition, it has a lower value of rated current. On the contrary, the cost of active materials of the hybrid switched reluctance one is much less. Originality. The presented results can assist in selecting the best design alternative of electrical machines in the following applications: electrical blowers, household appliances, fans, pumps and compressors of a low rated power etc. Practical value. The comparisons results of the flux reversal electrical machine and the hybrid switched reluctance machine has been obtained for the first time.

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Published

2020-04-21

How to Cite

Prakht, V. A., Dmitrievskii, V. A., Kazakbaev, V. M., & Oshurbekov, S. K. (2020). COMPARATIVE ANALYSIS OF TWO HIGH-SPEED SINGLE-PHASE ELECTRICAL MACHINES WITH PERMANENT MAGNETS ON THE STATOR. Electrical Engineering & Electromechanics, (2), 20–25. https://doi.org/10.20998/2074-272X.2020.2.03

Issue

No. 2 (2020)

Section

Electrical Machines and Apparatus

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Copyright (c) 2020 V. A. Prakht, V. A. Dmitrievskii, V. M. Kazakbaev, S. Kh. Oshurbekov

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