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Performance Improvement of Two-Vectors-Based Model Predictive Control of PWM Rectifier.
- Source :
- IEEE Transactions on Power Electronics; Aug2016, Vol. 31 Issue 8, p6016-6030, 15p
- Publication Year :
- 2016
-
Abstract
- Finite-control-set model predictive control (FCSMPC) has been proposed as a powerful control strategy for the power control of the pulse-width modulation rectifier. However, conventional FCSMPC applies only one voltage vector during one control period, which still presents relatively high power ripples. Introducing a zero vector in combination with a nonzero vector during one control period can improve the steady-state performance of the conventional FCSMPC, but the fixed vector combination is not an optimal solution in minimizing power errors. This paper proposes an improved two-vectors-based MPC, which relaxes the vector combination to two arbitrary voltage vectors. Compared to prior improved MPC with fixed vector combinations, the proposed method achieves better steady-state performance without affecting the dynamic response. Furthermore, the average switching frequency is reduced by up to 29.5% in average. The principles of vector selection and optimal vector duration are introduced in detail. The results obtained from two kinds of three-vectors-based predictive control methods are also presented for the aim of comparison. Both simulation and experimental results confirm the theoretical study and the effectiveness of the proposed method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08858993
- Volume :
- 31
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 115132765
- Full Text :
- https://doi.org/10.1109/TPEL.2015.2498306