TY - GEN
T1 - Discontinuous Modulation of Cascaded H-Bridge StatComs Considering Capacitor Voltage Oscillations
AU - Liu, Qingxiang
AU - Rodriguez, Ezequiel
AU - Farivar, Glen G.
AU - Pou, Josep
AU - Ceballos, Salvador
AU - Townsend, Christopher D.
AU - Leyva, Ramon
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - This paper formulates a discontinuous modulation (DM) technique for cascaded H-bridge (CHB) static compensators (StatComs) with star configuration. In the CHB StatComs, capacitor voltage (CV) oscillations cannot be disregarded when using relatively small dc-link capacitors. For this reason, in this paper, DM is achieved by injecting a zero-sequence voltage (ZSV) that takes into account the inherent CV oscillations. Then, the coupling that exists between the CV waveforms and the injected ZSV is analyzed. Particularly, the steady-state reference signals for the CHB StatCom operated discontinuously are analytically calculated. The practicability of the proposed DM technique is verified experimentally.
AB - This paper formulates a discontinuous modulation (DM) technique for cascaded H-bridge (CHB) static compensators (StatComs) with star configuration. In the CHB StatComs, capacitor voltage (CV) oscillations cannot be disregarded when using relatively small dc-link capacitors. For this reason, in this paper, DM is achieved by injecting a zero-sequence voltage (ZSV) that takes into account the inherent CV oscillations. Then, the coupling that exists between the CV waveforms and the injected ZSV is analyzed. Particularly, the steady-state reference signals for the CHB StatCom operated discontinuously are analytically calculated. The practicability of the proposed DM technique is verified experimentally.
KW - Capacitor voltage dynamics
KW - capacitor voltage oscillation
KW - cascaded H-bridge (CHB)
KW - discontinuous modulation (DM)
KW - static compensator (StatCom)
KW - zero-sequence voltage
UR - https://www.scopus.com/pages/publications/85123365670
U2 - 10.1109/ECCE47101.2021.9595443
DO - 10.1109/ECCE47101.2021.9595443
M3 - Conference contribution
AN - SCOPUS:85123365670
T3 - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
SP - 3087
EP - 3092
BT - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Y2 - 10 October 2021 through 14 October 2021
ER -