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A New Space-Vector-Modulation Algorithm for a Three-Level Four-Leg NPC Inverter.
- Source :
- IEEE Transactions on Energy Conversion; Mar2017, Vol. 32 Issue 1, p23-35, 13p
- Publication Year :
- 2017
-
Abstract
- For power conversion systems interfaced to four-wire supplies, four-leg converters have become a standard solution. A four-leg converter allows good compensation of zero-sequence harmonics and full utilisation of the dc-link voltage. These are very important features when unbalanced and/or nonlinear loads are connected to the system. This paper proposes a three-dimensional space vector modulation (SVM) algorithm and provides a comprehensive analysis of the algorithm implemented on a three-level, four-leg neutral-point-clamped converter. The algorithm allows a simple definition of the different switching patterns and enables balancing of the dc-link capacitor voltages using the redundancies of the converter states. A resonant controller is selected as the control strategy to validate the proposed SVM algorithm in a 6 kW experimental rig. [ABSTRACT FROM AUTHOR]
- Subjects :
- ELECTRIC inverters
VECTOR spaces
IDEAL sources (Electric circuits)
Subjects
Details
- Language :
- English
- ISSN :
- 08858969
- Volume :
- 32
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Energy Conversion
- Publication Type :
- Academic Journal
- Accession number :
- 121563589
- Full Text :
- https://doi.org/10.1109/TEC.2016.2605076