On a novel current control method for matrix converter

Author(s):  
Bin Wang ◽  
Da-Qing Gao ◽  
Diao Chen ◽  
Cai Ning ◽  
Guo Ling
Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1535
Author(s):  
Eun-Su Jun ◽  
Hoang-Long Dang ◽  
Sangshin Kwak

A model predictive current control method is proposed to reduce switching losses in an AC-DC matrix converter. In the proposed control strategy, several vectors are selected from among all possible switching vectors for a given location of the input current reference. The switching vector that minimizes the cost function is applied to the converter in the next sampling period. The principle of the proposed method involves clamping the selected switches to stop performing the switching operation to minimize the number of switchings in every sampling cycle. The total efficiency of the AC-DC matrix converter under the proposed strategy is 91.2% whereas that of the conventional strategy is 89.7%. In addition, unity-power-factor operation is guaranteed and smooth and sinusoidal waveforms are achieved. Finally, simulation and experimental results are demonstrated to confirm the validity of the proposed control strategy.


2020 ◽  
Vol 140 (8) ◽  
pp. 623-624
Author(s):  
Shunsuke Takuma ◽  
Keisuke Kusaka ◽  
Jun-ichi Itoh

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