TY - GEN
T1 - Partial Discharge Investigation of Electric Machine Winding due to Thermo-Mechanical Stresses for Electric Aircraft Propulsion
AU - Samarakoon, Anjana J.
AU - Tallerico, Thomas
AU - Wolhaupter, Brian
AU - Balachandran, Thanatheepan
AU - Haran, Kiruba
N1 - This work was supported by the National Science Foundation Engineering Research Center for Power Optimization of Electro-Thermal systems (POETS) with cooperative agreements EEC-1449548. Authors would like to acknowledge Dr. Andy Woodworth, Dr. Tim Krantz and Dr. Mark Valco at NASA Glenn Research Center for directing this study and also helping to impregnate the motor winding samples with a high quality.
PY - 2023
Y1 - 2023
N2 - The power density requirements and mission profile of electric aircraft propulsion motors result in significant stress on the motor winding's insulation. Traditional motor winding insulation design methods do not account for the thermomechanical stresses placed on motor windings in electric aircraft propulsion motor applications. This paper presents the results of initial experiments that aim to develop models and methodologies for designing high-reliability aircraft propulsion motors accounting for mechanical stress on the insulation. Twenty motorrette samples were manufactured and aged with thermal cycles. Partial discharge inception voltage (PDIV) was recorded as the samples were aged. Data is reported for PDIV as a function of thermal profile and the number of cycles experienced by the insulation.
AB - The power density requirements and mission profile of electric aircraft propulsion motors result in significant stress on the motor winding's insulation. Traditional motor winding insulation design methods do not account for the thermomechanical stresses placed on motor windings in electric aircraft propulsion motor applications. This paper presents the results of initial experiments that aim to develop models and methodologies for designing high-reliability aircraft propulsion motors accounting for mechanical stress on the insulation. Twenty motorrette samples were manufactured and aged with thermal cycles. Partial discharge inception voltage (PDIV) was recorded as the samples were aged. Data is reported for PDIV as a function of thermal profile and the number of cycles experienced by the insulation.
KW - insulation
KW - partial discharge
KW - thermomechanical aging
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U2 - 10.1109/IEMDC55163.2023.10238909
DO - 10.1109/IEMDC55163.2023.10238909
M3 - Conference contribution
AN - SCOPUS:85172719582
T3 - 2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023
BT - 2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023
Y2 - 15 May 2023 through 18 May 2023
ER -