TY - GEN
T1 - Design of Experiments for Stator Windings Insulation Degradation under High dv/dt and High Switching Frequency
AU - Alvarez-Gonzalez, Fernando
AU - Hewitt, David
AU - Griffo, Antonio
AU - Wang, Jiabin
AU - Diab, Mohamed
AU - Yuan, Xibo
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/11
Y1 - 2020/10/11
N2 - SiC power devices are gaining increased interest due to their superior performance and increased efficiency in motor drives compared to traditional Si-based IGBT converters. However, the increased switching frequency and much faster switching transients (high dv/dt) of Silicon Carbide (SiC) compared to their IGBT counterparts, can result in increased stress in electrical machines. To quantify these detrimental effects on machine insulation lifetime, a series of tests are conducted on electrical stators representative of typical low voltage machines used in traction and industrial applications. A Design of Experiment (DoE) methodology is employed to identify the test sequence using three stressors. In particular, three values of DC link voltage level, rise time or slew rate of the voltage waveform, and switching frequency, respectively are considered. The paper describes the planned tests and conditions, the insulation health monitoring method employed, and preliminary results.
AB - SiC power devices are gaining increased interest due to their superior performance and increased efficiency in motor drives compared to traditional Si-based IGBT converters. However, the increased switching frequency and much faster switching transients (high dv/dt) of Silicon Carbide (SiC) compared to their IGBT counterparts, can result in increased stress in electrical machines. To quantify these detrimental effects on machine insulation lifetime, a series of tests are conducted on electrical stators representative of typical low voltage machines used in traction and industrial applications. A Design of Experiment (DoE) methodology is employed to identify the test sequence using three stressors. In particular, three values of DC link voltage level, rise time or slew rate of the voltage waveform, and switching frequency, respectively are considered. The paper describes the planned tests and conditions, the insulation health monitoring method employed, and preliminary results.
KW - Design of Experiment
KW - SiC
KW - dv/dt
KW - insulation degradation
KW - partial discharge
KW - switching frequency
UR - https://www.scopus.com/pages/publications/85097184839
U2 - 10.1109/ECCE44975.2020.9235940
DO - 10.1109/ECCE44975.2020.9235940
M3 - Conference contribution
AN - SCOPUS:85097184839
T3 - ECCE 2020 - IEEE Energy Conversion Congress and Exposition
SP - 789
EP - 795
BT - ECCE 2020 - IEEE Energy Conversion Congress and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
Y2 - 11 October 2020 through 15 October 2020
ER -