TY - GEN
T1 - The electromagnetic design of a high speed, 45kW, switched reluctance machine having a novel rotor geometry for aerospace application
AU - Bartolo, J. Borg
AU - Gerada, C.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/11/17
Y1 - 2014/11/17
N2 - The work done in designing a high speed starter-generator for an aircraft engine will be presented in this paper. The electrical machine is of the variable reluctance type, which was chosen due to its inherent robustness, ease of manufacture and reliability. The Starter-Generator function requires the machine to initially act as a motor, spinning the aero-engine through the starting sequence, till light-off speed, (maximum torque condition). It then continues to assist the engine till idle speed is reached, following which the machine acts as a generator. The machine described was designed to deliver its maximum torque of 54Nm at 8000rpm, and will be required to supply a 45kW load at shaft speeds up to 32000rpm. The design envelope is the same as that used in sizing starter-generators for use in the latest models of regional jets. This paper details the challenges in designing such a machine to meet the wide constant power speed range required, and proposes a novel rotor structure as a possible solution.
AB - The work done in designing a high speed starter-generator for an aircraft engine will be presented in this paper. The electrical machine is of the variable reluctance type, which was chosen due to its inherent robustness, ease of manufacture and reliability. The Starter-Generator function requires the machine to initially act as a motor, spinning the aero-engine through the starting sequence, till light-off speed, (maximum torque condition). It then continues to assist the engine till idle speed is reached, following which the machine acts as a generator. The machine described was designed to deliver its maximum torque of 54Nm at 8000rpm, and will be required to supply a 45kW load at shaft speeds up to 32000rpm. The design envelope is the same as that used in sizing starter-generators for use in the latest models of regional jets. This paper details the challenges in designing such a machine to meet the wide constant power speed range required, and proposes a novel rotor structure as a possible solution.
KW - Electric Machines
KW - High Speed generators
KW - Reluctance Generators
UR - http://www.scopus.com/inward/record.url?scp=84916243095&partnerID=8YFLogxK
U2 - 10.1109/ICELMACH.2014.6960540
DO - 10.1109/ICELMACH.2014.6960540
M3 - Conference contribution
AN - SCOPUS:84916243095
T3 - Proceedings - 2014 International Conference on Electrical Machines, ICEM 2014
SP - 2513
EP - 2519
BT - Proceedings - 2014 International Conference on Electrical Machines, ICEM 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st International Conference on Electrical Machines, ICEM 2014
Y2 - 2 September 2014 through 5 September 2014
ER -