TY - GEN
T1 - A grid-connected cascaded H-bridge multilevel converter with quasi seven-level Selective Harmonic Elimination
AU - Fakhry, Mina G.
AU - Massoud, A.
AU - Ahmed, S.
N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27
PY - 2015/12/29
Y1 - 2015/12/29
N2 - In this paper, a high power grid-connected cascaded H-bridge multilevel inverter (CHB-MLI) operating with Selective Harmonic Elimination (SHE) is presented complying with the low switching frequency operation limitation. In order to alleviate the complexity of employing SHE at high level order, Quasi seven level SHE (Q7L-SHE) approach is employed in this paper. Q7L-SHE is based on cancelling the fifth and seventh order harmonics irrelevant of the number of employed levels. Compared with the conventional SHE approach, the Q7L-SHE method requires solving simple equation groups, especially if a large number of switching angles is required, or if each voltage level requires multiple switching angles. The grid-connected CHB-MLI is controlled in the synchronous rotating reference frame which is used to control the modulation index and the phase angle. A 5MW medium voltage 17-level grid-connected CHB-MLI is considered to validate the proposed concept. Simulation results using the MATLAB/SIMULINK platform have been presented to elucidate the proposed concept.
AB - In this paper, a high power grid-connected cascaded H-bridge multilevel inverter (CHB-MLI) operating with Selective Harmonic Elimination (SHE) is presented complying with the low switching frequency operation limitation. In order to alleviate the complexity of employing SHE at high level order, Quasi seven level SHE (Q7L-SHE) approach is employed in this paper. Q7L-SHE is based on cancelling the fifth and seventh order harmonics irrelevant of the number of employed levels. Compared with the conventional SHE approach, the Q7L-SHE method requires solving simple equation groups, especially if a large number of switching angles is required, or if each voltage level requires multiple switching angles. The grid-connected CHB-MLI is controlled in the synchronous rotating reference frame which is used to control the modulation index and the phase angle. A 5MW medium voltage 17-level grid-connected CHB-MLI is considered to validate the proposed concept. Simulation results using the MATLAB/SIMULINK platform have been presented to elucidate the proposed concept.
KW - Artificial Neural Network (ANN)
KW - Cascaded H-bridge Multilevel Inverters
KW - Closed Loop
KW - dq Control
KW - Multilevel Converter
KW - Selective Harmonic Elimination (SHE)
UR - http://ieeexplore.ieee.org/document/7368505/
UR - http://www.scopus.com/inward/record.url?scp=84964776814&partnerID=8YFLogxK
U2 - 10.1109/EPECS.2015.7368505
DO - 10.1109/EPECS.2015.7368505
M3 - Conference contribution
AN - SCOPUS:84964776814
SN - 9781467391306
T3 - 2015 4th International Conference on Electric Power and Energy Conversion Systems, EPECS 2015
BT - 2015 4th International Conference on Electric Power and Energy Conversion Systems, EPECS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Electric Power and Energy Conversion Systems, EPECS 2015
Y2 - 24 November 2015 through 26 November 2015
ER -