TY - GEN
T1 - Reducing circulating currents in interleaved converter legs under selective harmonic elimination pulse-width modulation
AU - Konstantinou, Georgios
AU - Pou, Josep
AU - Capella, Gabriel J.
AU - Ceballos, Salvador
AU - Agelidis, Vassilios G.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6/16
Y1 - 2015/6/16
N2 - Interleaving of voltage source converter legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. Different switching patterns between the converter legs increase the number of Thevenin output voltage levels and, hence, the quality of the waveform but also generate circulating currents within one phase. This paper proposes a controller for interleaved converter legs under selective harmonic elimination pulse-width modulation (SHE-PWM) aimed at reducing the circulating current within the legs of each phase. The controller is used in combination with optimally selected SHE-PWM patterns to minimise the peak value of the circulating current. The proposed controller is applied in two interleaved three-level active neutral-point-clamped converters and simulation results demonstrate their performance.
AB - Interleaving of voltage source converter legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. Different switching patterns between the converter legs increase the number of Thevenin output voltage levels and, hence, the quality of the waveform but also generate circulating currents within one phase. This paper proposes a controller for interleaved converter legs under selective harmonic elimination pulse-width modulation (SHE-PWM) aimed at reducing the circulating current within the legs of each phase. The controller is used in combination with optimally selected SHE-PWM patterns to minimise the peak value of the circulating current. The proposed controller is applied in two interleaved three-level active neutral-point-clamped converters and simulation results demonstrate their performance.
KW - Interleaving
KW - Multilevel converters
KW - Multilevel waveforms
KW - Parallel legs
KW - SHE-PWM
KW - Selective harmonic elimination
KW - Voltage source converters
UR - http://www.scopus.com/inward/record.url?scp=84937722598&partnerID=8YFLogxK
U2 - 10.1109/ICIT.2015.7125250
DO - 10.1109/ICIT.2015.7125250
M3 - Conference contribution
AN - SCOPUS:84937722598
T3 - Proceedings of the IEEE International Conference on Industrial Technology
SP - 1136
EP - 1141
BT - 2015 IEEE International Conference on Industrial Technology, ICIT 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Conference on Industrial Technology, ICIT 2015
Y2 - 17 March 2015 through 19 March 2015
ER -