Optimization of a Micro Wind Power Turbine Composed of a Magnetic Gear and Bearingless Generators

Gereon Goldbeck*, Edmund Marth, Valentin Mateev, Iliana Marinova, Wolfgang Gruber

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceedingspeer-review

Abstract

This paper presents the design and optimization of a machine concept combining a magnetic gear with two
bearingless generators, specifically designed for micro wind turbines. This approach aims to address the
challenges of efficient energy conversion at small scales by leveraging the advantages of both components. The
magnetic gear enables transmission of mechanical power from low rotational speeds to higher speeds, thereby
reducing the overall size of the turbine system. The bearingless generator offers maintenance-free operation,
enhancing reliability and reducing operational costs. The study details the design principles, optimization
strategies, and parameter selection to maximize performance. Through comprehensive simulations and analyses,
the results demonstrate that the optimized system can achieve an overall efficiency of over 93%. The findings
indicate that the proposed machine concept is suitable for micro wind turbine applications, providing a compact,
efficient, and low-maintenance solution. The paper concludes with a discussion of the benefits, limitations, and
future prospects.
Original languageEnglish
Title of host publicationISMB-19th International Symposium on Magnetic Bearings
Publication statusAccepted/In press - 2025
EventISMB 19-International Symposium on Magnetic Bearings - Otsu, Japan
Duration: 19 Aug 202522 Aug 2025

Conference

ConferenceISMB 19-International Symposium on Magnetic Bearings
Country/TerritoryJapan
Period19.08.202522.08.2025

Fields of science

  • 202027 Mechatronics
  • 202011 Electrical machines
  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202025 Power electronics
  • 202009 Electrical drive engineering

JKU Focus areas

  • Sustainable Development: Responsible Technologies and Management
  • Digital Transformation

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