New Slotless Winding Topology

Patented solution

New patented solution for slotless winding involving non-constant wire sections and optimised shapes.

New patented solution for slotless winding involving non-constant wire sections and optimised shapes.

Project description

Due to the many possible shapes and topologies they can embrace, slotless windings represent a substantial potential for improvement. Indeed, windings are a key part of electrical machines and their enhancement directly affects the performances of electrical machines. A new patented solution for slotless winding involving non-constant wire sections and an optimised shape enables the increase of the performances of motors by 25% compared to traditional windings. With the help of constantly improving additive manufacturing technologies, new manners of designing and manufacturing electrical machines are now possible.

 

Publications

Conference Papers

Optimization of shape and topology for slotless windings in BLDC machines

G. Burnand; D. Martins Araujo; Y. Perriard 

2018. The 2018 International Conference on Electrical Machines and Systems (ICEMS), Jeju, South Corea, October 7-10, 2018. p. 31-36. DOI : 10.23919/ICEMS.2018.8549062.

Very-High-Speed Miniaturized Permanent Magnet Motors: Modeling and Experimental Validation

G. Burnand; Y. Perriard 

2019. The 11th Annual Energy Conversion Congress and Exposition (ECCE2019), Balimore, MD, USA, September 29 – October 3, 3019. p. 5251-5257. DOI : 10.1109/ECCE.2019.8913079.

Very-High-Speed Miniaturized Permanent Magnet Motors: Design and Optimization

G. Burnand; Y. Perriard 

2019. The 11th Annual Energy Conversion Congress and Exposition (ECCE2019), Baltimore, MD, USA, September 29 – October 3, 2019. p. 5258-5264. DOI : 10.1109/ECCE.2019.8912205.

Density-Based Topology Optimization of Conductor Paths for Windings in Slotted Electrical Machines

A. Thabuis; X. Ren; G. Burnand; Y. Perriard 

2019. 22nd International Conference on Electrical Machines and Systems (ICEMS 2019), Harbin, China, August 11-14, 2019. DOI : 10.1109/ICEMS.2019.8921728.

Very-High-Speed Permanent Magnet Motors: Mechanical Rotor Stresses Analytical Model

G. Burnand; D. Martins Araujo; Y. Perriard 

2017. 2017 IEEE International Electric Machines and Drives Conference (IEMDC), Miami, FL, USA, May 21-24, 2017. DOI : 10.1109/IEMDC.2017.8002066.

Theses

Small scale very high speed slotless permanent magnet motors

G. P-A. Burnand / Y. Perriard (Dir.)  

Lausanne, EPFL, 2020. 

Patents

Electrical machines winding

G. Burnand; D. Martins Araujo; Y. Perriard 

CH715403; CH715403.

2018.

Student Projects

Study of a test bench for measurements on a very high-speed miniaturized motor

J. Willemin 

2018.

Transient study of a very-high-speed rotor through vibration modes

E. Décosterd 

2018.

Etude de la magnétisation des moteurs synchrones à flux axial

G. Burnand 

2015.