TY - GEN
T1 - High-frequency analysis and measurement techniques with mixed-mode conversion of induction machine for shaft-voltage prediction
AU - Yea, Manje
AU - Ryu, Younggon
AU - Kim, Jingook
AU - Han, Ki Jin
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - This paper shows high-frequency measurement techniques including phase windings and shaft-ends of a three-phase electrical machine rotating at its rated-rpm, and mixed-mode conversion method for impedance parameters. For the purpose, an external torque source mechanically drives the induction machine, while measuring phase windings and shaft-ends with a vector network analyzer. To investigate common-mode, differential-mode, and inter-phase differential-mode components of drive signals with each shaft-end, we converted the measured impedance parameters to mixed-mode impedance parameters. To verify the converted results, transfer impedances between shaft ends and common-mode component of the mixed-mode parameters are compared with time-domain shaft voltage waveforms that are generated by sinusoidal CM input signals of different frequencies. The comparison showed the mixed-mode impedance parameters match the time-domain waveforms. Also, the mixed-mode parameters showed that common- and differential-mode are more responsible for shaft end-to-end voltage, while common-mode and inter-phase differential-mode are more responsible for shaft-to-frame voltage, for the induction machine. Also, frequency ranges of each mode over which each voltage are more susceptible are specified from the results.
AB - This paper shows high-frequency measurement techniques including phase windings and shaft-ends of a three-phase electrical machine rotating at its rated-rpm, and mixed-mode conversion method for impedance parameters. For the purpose, an external torque source mechanically drives the induction machine, while measuring phase windings and shaft-ends with a vector network analyzer. To investigate common-mode, differential-mode, and inter-phase differential-mode components of drive signals with each shaft-end, we converted the measured impedance parameters to mixed-mode impedance parameters. To verify the converted results, transfer impedances between shaft ends and common-mode component of the mixed-mode parameters are compared with time-domain shaft voltage waveforms that are generated by sinusoidal CM input signals of different frequencies. The comparison showed the mixed-mode impedance parameters match the time-domain waveforms. Also, the mixed-mode parameters showed that common- and differential-mode are more responsible for shaft end-to-end voltage, while common-mode and inter-phase differential-mode are more responsible for shaft-to-frame voltage, for the induction machine. Also, frequency ranges of each mode over which each voltage are more susceptible are specified from the results.
KW - Induction machine
KW - Mixed-mode
KW - Shaft voltage
UR - http://www.scopus.com/inward/record.url?scp=85070998110&partnerID=8YFLogxK
U2 - 10.1109/IEMDC.2019.8785147
DO - 10.1109/IEMDC.2019.8785147
M3 - Conference contribution
AN - SCOPUS:85070998110
T3 - 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019
SP - 2002
EP - 2007
BT - 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE International Electric Machines and Drives Conference, IEMDC 2019
Y2 - 12 May 2019 through 15 May 2019
ER -