TY - GEN

T1 - New 13-space vector diagram for the three-phase six-switches voltage source inverter

AU - Saied, Mohamed H.

AU - Mostafa, M. Z.

AU - Abdel-Moneim, T. M.

AU - Yousef, H. A.

PY - 2012

Y1 - 2012

N2 - This paper presents a new switching strategy controling the most-common, simple, and well-known three-phase six-switch voltage source inverter (VSI). Via this strategy, each one of the six transistors conducts for 150°, instead of the known 180° or 120° conduction-modes, resulting in a new space voltage-vector diagram (SVD). For a wye-load connected to the VSI, the known 6 active and 2 zero voltage-vectors, coincided in the origin, construct the classical 7-SVD. Using the new controling strategy, new different 6 non-zero voltage-vectors are primarily introduced to the literature and added to the former ones conistituting an innovated 13 space vector diagram (13-SVD) for the inverter, instead of the conventional 7-SVD. The output phase-voltage becomes a 7-level, 12-step waveform, and a 50% reduction of the total harmonic distortion is obtained. Comprehensive study for the new switching strategy and the resulting voltage vectors is proposed, and comparisons with other VSI topologies; like neutral point clamped (NPC) and multilevel inverters (MLI) were also carried out. Simulation and experimental results show the contribution of the proposed technique.

AB - This paper presents a new switching strategy controling the most-common, simple, and well-known three-phase six-switch voltage source inverter (VSI). Via this strategy, each one of the six transistors conducts for 150°, instead of the known 180° or 120° conduction-modes, resulting in a new space voltage-vector diagram (SVD). For a wye-load connected to the VSI, the known 6 active and 2 zero voltage-vectors, coincided in the origin, construct the classical 7-SVD. Using the new controling strategy, new different 6 non-zero voltage-vectors are primarily introduced to the literature and added to the former ones conistituting an innovated 13 space vector diagram (13-SVD) for the inverter, instead of the conventional 7-SVD. The output phase-voltage becomes a 7-level, 12-step waveform, and a 50% reduction of the total harmonic distortion is obtained. Comprehensive study for the new switching strategy and the resulting voltage vectors is proposed, and comparisons with other VSI topologies; like neutral point clamped (NPC) and multilevel inverters (MLI) were also carried out. Simulation and experimental results show the contribution of the proposed technique.

KW - 12-Step waveform

KW - 150° conduction-mode

KW - space vector modulation

KW - space voltage-vectors

KW - switching strategy

KW - total harmonic distortion

KW - two-level inverter

KW - voltage source inverters

UR - http://www.scopus.com/inward/record.url?scp=84864863773&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864863773&partnerID=8YFLogxK

U2 - 10.1109/ISIE.2012.6237120

DO - 10.1109/ISIE.2012.6237120

M3 - Conference contribution

AN - SCOPUS:84864863773

SN - 9781467301589

T3 - IEEE International Symposium on Industrial Electronics

SP - 402

EP - 407

BT - Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012

T2 - 21st IEEE International Symposium on Industrial Electronics, ISIE 2012

Y2 - 28 May 2012 through 31 May 2012

ER -