Utilising the axial degree of freedom in the design of an additively manufactured rotor of a synchronous reluctance machine
Notz, Fabian (2024)
Diplomityö
2024
School of Energy Systems, Energiatekniikka
Kaikki oikeudet pidätetään.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2024052738242
https://urn.fi/URN:NBN:fi-fe2024052738242
Tiivistelmä
One of the most significant areas of development for the purpose of becoming more climate-friendly is that of efficient drives. These drives of the future must meet the specific requirements of the various industrial sectors, while also demonstrating a high degree of efficiency. These requirements are being further defined by regulations. Synchronous reluctance machines are capable of achieving a high degree of efficiency due to their mode of operation, although they are also characterised by a high torque ripple.
This thesis examines the potential of utilising the axial degree of freedom in the design of an additively manufactured rotor for a synchronous reluctance machine. The research investigates the potential for enhancements in operating properties that could be achieved through the leveraging of the design flexibility afforded by additive manufacturing techniques. Traditionally, the design of the active part of electrical machines has been largely constrained to two dimensions due to conventional manufacturing processes, with any modifications along the axial axis typically aimed solely at reducing torque ripple.
This study employs 3D printing to introduce and examine novel rotor geometries that can be realised in all three spatial directions, thereby enabling enhanced performance characteristics. The primary objective is to optimise the rotor design to improve torque production and minimise torque ripple. The thesis includes a literature review on SynRM design and the state of research on additively manufactured electrical machines. The study evaluates existing three-dimensional design methods and develops a new rotor design, which is then validated through finite element simulations. The findings demonstrate that the proposed three-dimensional design offers significant potential for performance enhancement in SynRMs, contributing valuable insights to the field of electric machine design and manufacturing. The results indicate a promising direction for future research and application of additive manufacturing in the optimisation of electrical machines.
This thesis examines the potential of utilising the axial degree of freedom in the design of an additively manufactured rotor for a synchronous reluctance machine. The research investigates the potential for enhancements in operating properties that could be achieved through the leveraging of the design flexibility afforded by additive manufacturing techniques. Traditionally, the design of the active part of electrical machines has been largely constrained to two dimensions due to conventional manufacturing processes, with any modifications along the axial axis typically aimed solely at reducing torque ripple.
This study employs 3D printing to introduce and examine novel rotor geometries that can be realised in all three spatial directions, thereby enabling enhanced performance characteristics. The primary objective is to optimise the rotor design to improve torque production and minimise torque ripple. The thesis includes a literature review on SynRM design and the state of research on additively manufactured electrical machines. The study evaluates existing three-dimensional design methods and develops a new rotor design, which is then validated through finite element simulations. The findings demonstrate that the proposed three-dimensional design offers significant potential for performance enhancement in SynRMs, contributing valuable insights to the field of electric machine design and manufacturing. The results indicate a promising direction for future research and application of additive manufacturing in the optimisation of electrical machines.