Direct Model Predictive Control with Constrained Power Losses for Grid-Tied Converters with LCL Filters

被引:0
|
作者
Rossi, Mattia [1 ]
Karamanakos, Petros [1 ]
Sankala, Arto [2 ]
机构
[1] Tampere Univ, Fac Informat Technol & Commun Sci, Tampere 33101, Finland
[2] Danfoss Drives, Tampere 33560, Finland
关键词
Model predictive control; power losses; analytical losses computation; grid-connected converter; optimal control; efficiency;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This paper proposes a direct model predictive control (MPC) method that improves the efficiency of grid-tied converters with LCL filters, while minimizing the grid current distortions. To do so, the MPC problem not only accounts for the grid current reference tracking minimization, but it also limits the converter power losses by introducing explicit constraints on them. To this aim, different problem formulations are examined to limit the losses. Specifically, the FCS-MPC problem is designed such that it either limits the losses per semiconductor device or the three-phase converter losses. The presented results verify the effectiveness of the proposed strategy and demonstrate the performance benefits compared to conventional control and modulation methods, such as voltage-oriented control (VOC) with space vector modulation (SVM) or discontinuous pulse width modulation (DPWM).
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页数:9
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