Model Free Predictive Current Control of Vienna Rectifier Based on Space Vector Modulation
Zhang Yongchang1, Qu Qiyan2, Yang Haitao2
1. School of Electrical and Electronic Engineering North China Electric Power University Beijing 102206 China; 2. Power Electronics and Motor Drive Engineering Research Center of Beijing North China University of Technology Beijing 100144 China
Abstract The three-phase three-level Vienna rectifier has the advantages of low switching stress and high power factor. In order to eliminate the dependence of traditional deadbeat predictive current control (DPCC) on system parameters, a model-free predictive current control (MFPCC) method is proposed in this paper. The features of the proposed method include using an ultra-local model instead of the conventional accurate model of the Vienna rectifier, and the online updating of the gain and the dynamic part of the ultra-local model based on the voltage/current information in the past two control periods. The proposed method is combined with DPCC to calculate the reference voltage vector at the next instant and space vector modulation (SVM) is used to generating the gating pulses. The proposed method has strong robustness, small amount of calculation, and good steady and dynamic performance. The proposed method is compared to conventional DPCC in terms of steady-state and dynamic performance under the condition of accurate and inaccurate model parameters. Simulation and experiment results verify the superiority of the proposed method.
Zhang Yongchang,Qu Qiyan,Yang Haitao. Model Free Predictive Current Control of Vienna Rectifier Based on Space Vector Modulation[J]. Transactions of China Electrotechnical Society, 2022, 37(21): 5541-5547.
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2022, Vol. 37 
