Energy Efficiency Improvement of Electric Machines without Rare-Earth Magnets

• Other Authors: Prakht, Vladimir (Editor), Ibrahim, Mohamed N. (Editor), Kazakbaev, Vadim (Editor)
• Format: Electronic Book Chapter
• Language: English
• Published: Basel MDPI - Multidisciplinary Digital Publishing Institute 2023
• Subjects: Research & information: general; Physics; centrifugal pump; energy efficiency; induction motor; line-start synchronous motor; synchronous reluctance motor; throttling control; simulation-based optimization; coyote optimization algorithm; water pumping; axial flux induction motor; finite element analysis; performance evaluation; cogging torque; ferrite PM; flux reversal machine; non-rare earth; wind energy; international electrotechnical committee; line start synchronous reluctance motor; power factor; super premium efficiency; switched reluctance machine; winding arrangement; static torque; dynamic torque; torque ripple; core loss; flux reversal; leakage-flux; magnetic flux path; electric motorcycle; switched reluctance motors; indirect torque control; linear machine; flux switching machine; modular stator; crooked tooth; ferrite magnet; genetic algorithm; thermal analysis; LPMEC model; field-excited machine; flux-switching machine; performance analysis; optimization; switched reluctance motor (SRMs); hybrid excitation of SRM (HESRM); hybrid excitation of SRM without a permanent magnet; permanent magnet (PM); electric vehicle motor; n/a
• Online Access: DOAB: download the publication; DOAB: description of the publication

Electric motors consume about 70% of industrial electricity and about 40%-45% of produced electricity in the world. This means that using high-efficiency electric motors will improve the level of energy consumption. In addition, it will reduce the impact of greenhouse gas emissions on the environment. Furthermore, it will significantly reduce the need for new power plants, thus reducing the invested resources to do so. Electric machines employing rare-earth magnets have higher efficiency and power density. However, rare-earth magnets are expensive, and their manufacturing process, as well as the process of mining rare-earth raw materials, is harmful to the environment. Thereby, the development of energy-efficient electric machines without rare-earth magnets is of great interest. The aim of this reprint was to gather new research publications in various topics related to improving the energy efficiency of electric machines without using rare-earth magnets. Ten articles have been published which cover various topics.