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A Simplified Analytical Algorithm in abc Coordinate for the Three-Level SVPWM.

Authors :
Yan, Qingzeng
Zhou, Zanrong
Wu, Mingbo
Yuan, Xibo
Zhao, Rende
Xu, Hailiang
Source :
IEEE Transactions on Power Electronics; Apr2021, Vol. 36 Issue 4, p3622-3627, 6p
Publication Year :
2021

Abstract

Given the high complexity of the conventional three-level space-vector pulsewidth modulation (3L SVPWM), simplified SVPWM algorithms are usually adopted instead. However, existing simplifications for 3L SVPWM still have a large computation burden, which limits its applications, e.g., in high-switching-frequency silicon-carbide converters with a short computation period. In this letter, based on a typical simplified algorithm known as the center-aligned 3L SVPWM, a simplified analytical algorithm in abc coordinate is proposed. The reference-voltage-vector adjustment and the calculation of modulation waves are unified based on the center-aligned SVPWM. The modulation waves can be analytically derived by only eight simple equations, without sector determination, calculation, and assignment of dwell times. Consequently, the complexity of implementing the 3L SVPWM is significantly reduced. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08858993
Volume :
36
Issue :
4
Database :
Complementary Index
Journal :
IEEE Transactions on Power Electronics
Publication Type :
Academic Journal
Accession number :
147401432
Full Text :
https://doi.org/10.1109/TPEL.2020.3027742