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Analytical current THD evaluation for threephase voltage source inverters.
- Source :
- IET Power Electronics (Wiley-Blackwell); 2020, Vol. 13 Issue 6, p1286-1289, 4p, 3 Diagrams, 5 Graphs
- Publication Year :
- 2020
-
Abstract
- This study addresses the calculation of current total harmonic distortion (THD) for three-phase (3P) pulse-width modulation (PWM) inverters. First, it demonstrates how an analytical approach to PWM current ripple normalised mean square (NMS) calculation introduced in the late 1980s for a two-level (2L) inverter can be used for current THD evaluation. Second, it is shown how to evaluate current THD for a three-level (3L) 3P inverter using the current ripple NMS concept. Though considered is a 3P cascaded inverter with one H-bridge per phase, the results are applicable to popular 3L neutral point clamped (T-type) and flying capacitor inverters. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17554535
- Volume :
- 13
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- IET Power Electronics (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 142806672
- Full Text :
- https://doi.org/10.1049/iet-pel.2019.1257