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

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

Institute of Electric Machines and Power Electronics

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-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 language	English
Title of host publication	ISMB-19th International Symposium on Magnetic Bearings
Publication status	Accepted/In press - 2025
Event	ISMB 19-International Symposium on Magnetic Bearings - Otsu, Japan Duration: 19 Aug 2025 → 22 Aug 2025

Conference

Conference	ISMB 19-International Symposium on Magnetic Bearings
Country/Territory	Japan
Period	19.08.2025 → 22.08.2025

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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

Cite this

@inproceedings{8082c8653dd044cf94ea3d24806e34d3,

title = "Optimization of a Micro Wind Power Turbine Composed of a Magnetic Gear and Bearingless Generators",

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.",

author = "Gereon Goldbeck and Edmund Marth and Valentin Mateev and Iliana Marinova and Wolfgang Gruber",

year = "2025",

language = "English",

booktitle = "ISMB-19th International Symposium on Magnetic Bearings",

note = "ISMB 19-International Symposium on Magnetic Bearings ; Conference date: 19-08-2025 Through 22-08-2025",

}

TY - GEN

T1 - Optimization of a Micro Wind Power Turbine Composed of a Magnetic Gear and Bearingless Generators

AU - Goldbeck, Gereon

AU - Marth, Edmund

AU - Mateev, Valentin

AU - Marinova, Iliana

AU - Gruber, Wolfgang

PY - 2025

Y1 - 2025

N2 - 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.

AB - 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.

M3 - Conference proceedings

BT - ISMB-19th International Symposium on Magnetic Bearings

T2 - ISMB 19-International Symposium on Magnetic Bearings

Y2 - 19 August 2025 through 22 August 2025

ER -