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Modelling of a 6 Slot 4 Pole Single Tooth Wound Synchronous Reluctance Motor (2017)
Conference Proceeding
Donaghy-Spargo, C., Mecrow, B., & Widmer, J. (2017). Modelling of a 6 Slot 4 Pole Single Tooth Wound Synchronous Reluctance Motor. In 2017 IEEE International Electric Machines and Drives Conference (IEMDC): 21-24 May 2017, Miami, Florida, USA. https://doi.org/10.1109/iemdc.2017.8002058

This paper presents a modified d-q model that includes the complex inductance characteristics present in single tooth wound synchronous reluctance motors. Utilization of the single tooth coils results in high air gap harmonic content and has conseque... Read More about Modelling of a 6 Slot 4 Pole Single Tooth Wound Synchronous Reluctance Motor.

Leakage Inductance of a Prototyped Single Tooth Wound Synchronous Reluctance Motor (2017)
Conference Proceeding
Donaghy-Spargo, C., Mecrow, B., & Widmer, J. (2017). Leakage Inductance of a Prototyped Single Tooth Wound Synchronous Reluctance Motor. In 2017 IEEE International Electric Machines and Drives Conference (IEMDC) ; proceedings (556-561). https://doi.org/10.1109/iemdc.2017.8002059

This paper explores the inductance characteristics present in single tooth wound synchronous reluctance motors, specifically the stator leakage inductance. Despite the nature of the single tooth design resulting in increased air gap harmonic content,... Read More about Leakage Inductance of a Prototyped Single Tooth Wound Synchronous Reluctance Motor.

Synchronous reluctance motors with toroidal windings (2014)
Conference Proceeding
Spargo, C., Mecrow, B., & Widmer, J. (2014). Synchronous reluctance motors with toroidal windings. In 2014 IEEE Energy Conversion Congress and Exposition (ECCE) : 14-18 September 2014, Pittsburgh, PA, USA (1374-1378). https://doi.org/10.1109/ecce.2014.6953578

This paper introduces the concept of a four-pole toroidally wound synchronous reluctance machine as an alternative to conventional and fractional slot concentrated winding designs. The toroidal windings, which are wound around the stator coreback hav... Read More about Synchronous reluctance motors with toroidal windings.

Design of a synchronous reluctance motor with non-overlapping fractional-slot concentrated windings (2014)
Conference Proceeding
Spargo, C., Mecrow, B., & Widmer, J. (2014). Design of a synchronous reluctance motor with non-overlapping fractional-slot concentrated windings. In 2014 IEEE Energy Conversion Congress and Exposition (ECCE) : 14-18 September 2014, Pittsburgh, PA, USA (1393-1399). https://doi.org/10.1109/ecce.2014.6953581

This paper presents the detailed design and finite element study of a synchronous reluctance machine with a non-overlapping fractional slot concentrated windings. The machine design employs single tooth wound coils with short end windings and high fi... Read More about Design of a synchronous reluctance motor with non-overlapping fractional-slot concentrated windings.

Computationally efficient skew effect calculation in electric machines utilising harmonic Maxwellian stress decomposition (2014)
Conference Proceeding
Spargo, C., Mecrow, B., & Widmer, J. (2014). Computationally efficient skew effect calculation in electric machines utilising harmonic Maxwellian stress decomposition. In Proceedings, 2014 International Conference on Electrical Machines (ICEM) : Andel's Hotel Berlin, Berlin, Germany, 02 - 05 September, 2014 (1044-1049). https://doi.org/10.1109/icelmach.2014.6960310

A novel finite element solution post-processing technique to determine the effects of rotor skewing is presented in this paper. It was previously proposed that a post-processing semi-numerical method to calculate the harmonic torque components in syn... Read More about Computationally efficient skew effect calculation in electric machines utilising harmonic Maxwellian stress decomposition.

Higher pole number synchronous reluctance machines with fractional slot concentrated windings (2014)
Conference Proceeding
Spargo, C., Mecrow, B., & Widmer, J. (2014). Higher pole number synchronous reluctance machines with fractional slot concentrated windings. In 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014) : Manchester, United Kingdom, 8 - 10 April 2014 (1-6). https://doi.org/10.1049/cp.2014.0279

This paper presents an examination of the advantages, disadvantages and remaining challenges of the application of fractional slot concentrated windings to higher pole number (pole-pairs > 2) synchronous reluctance machines. It extends previous work... Read More about Higher pole number synchronous reluctance machines with fractional slot concentrated windings.

Application of fractional slot concentrated windings to synchronous reluctance machines (2013)
Conference Proceeding
Spargo, C., Mecrow, B., & Widmer, J. (2013). Application of fractional slot concentrated windings to synchronous reluctance machines. In Proceedings of the 2013 IEEE International Electric Machines and Drives Conference (IEMDC) : Chicago, Illinois, USA, May 12-15, 2013 (618-625). https://doi.org/10.1109/iemdc.2013.6556159

Due to the advancement of electric vehicles, the desire for high torque density electric motors for traction applications is steadily increasing. It is advantageous to design such a motor with little or no rare earth permanent magnet (PM) material du... Read More about Application of fractional slot concentrated windings to synchronous reluctance machines.

Winding configurations for a six phase switched reluctance machine (2012)
Conference Proceeding
Widmer, J., Martin, R., Spargo, C., Mecrow, B., & Celik, T. (2012). Winding configurations for a six phase switched reluctance machine. In 2012 XXth International Conference on Electrical Machines (ICEM) (532-538). https://doi.org/10.1109/icelmach.2012.6349921

Winding configurations are investigated for a six phase, 12-10 switched reluctance machine having single tooth wound coils and being driven from a conventional three phase full bridge converter with the addition of six diodes. A new winding configura... Read More about Winding configurations for a six phase switched reluctance machine.

Use of a 3 phase full bridge converter to drive a 6 phase switched reluctance machine (2012)
Conference Proceeding
Widmer, J., Mecrow, B., Spargo, C., Martin, R., & Celik, T. (2012). Use of a 3 phase full bridge converter to drive a 6 phase switched reluctance machine. In 6th IET International Conference on Power Electronics, Machines and Drives (PEMD 2012). https://doi.org/10.1049/cp.2012.0260

This paper explores how the use of a modified full bridge converter, coupled to a 6 phase switched reluctance motor, can produce a torque dense drive with low torque ripple, combined with standard drive electronics and a good converter VA rating. A d... Read More about Use of a 3 phase full bridge converter to drive a 6 phase switched reluctance machine.