TY - GEN
T1 - Online adaptive space vector modulation
AU - Lam, V.T.T.
AU - Papafotiou, G.
PY - 2023/11/21
Y1 - 2023/11/21
N2 - In this paper, we present a new modulation method for multilevel three-phase inverters, called online adaptive space vector modulation (oaSVM). The task of a modulator is to reconstruct the desired voltage υ* from the available discrete voltage vectors that correspond to the inverter switch positions. State-of-the-art SVM chooses three voltage vectors that form the closest triangle containing υ*. On the other hand, oaSVM explores every possible triangle that contains υ* and selects the three voltage vectors such that the trade-off between inverter switching losses and load current total harmonic distortion (THD) is improved. Inverter switching constraints and neutral-point voltage balancing are also included. The resulting mixed-integer optimization problem is solved using a branch and bound method. Through MATLAB-simulations, the loss-THD trade-off between SVM and oaSVM will be compared and we show that oaSVM can improve the inverter's efficiency.
AB - In this paper, we present a new modulation method for multilevel three-phase inverters, called online adaptive space vector modulation (oaSVM). The task of a modulator is to reconstruct the desired voltage υ* from the available discrete voltage vectors that correspond to the inverter switch positions. State-of-the-art SVM chooses three voltage vectors that form the closest triangle containing υ*. On the other hand, oaSVM explores every possible triangle that contains υ* and selects the three voltage vectors such that the trade-off between inverter switching losses and load current total harmonic distortion (THD) is improved. Inverter switching constraints and neutral-point voltage balancing are also included. The resulting mixed-integer optimization problem is solved using a branch and bound method. Through MATLAB-simulations, the loss-THD trade-off between SVM and oaSVM will be compared and we show that oaSVM can improve the inverter's efficiency.
KW - MIXED-INTEGER OPTIMIZATION
KW - NEUTRAL-POINT CLAMPED INVERTER
KW - SPACE VECTOR MODULATION
KW - SWITCHING LOSSES
KW - TOTAL HARMONIC DISTORTION
UR - https://www.scopus.com/pages/publications/85178608894
U2 - 10.1049/icp.2023.2032
DO - 10.1049/icp.2023.2032
M3 - Conference contribution
T3 - IET Conference Proceedings
SP - 426
EP - 433
BT - 12th International Conference on Power Electronics, Machines and Drives, PEMD 2023
PB - Institution of Engineering and Technology
T2 - 12th International Conference on Power Electronics, Machines and Drives (PEMD 2023)
Y2 - 23 October 2023 through 24 October 2023
ER -