scholarly journals Design Method for the LCL Filters of Three-phase Voltage Source PWM Rectifiers

2012 ◽  
Vol 12 (4) ◽  
pp. 559-566 ◽  
Author(s):  
Xizheng Guo ◽  
Xiaojie You ◽  
Xinran Li ◽  
Ruixiang Hao ◽  
Dewei Wang
Keyword(s):  
Design Method ◽  
Voltage Source ◽  
Phase Voltage ◽  
Three Phase ◽  
Pwm Rectifiers

scholarly journals A New Control Strategy of Three Phase Voltage Source PWM Rectifiers

2012 ◽  
Vol 24 ◽  
pp. 997-1005 ◽  
Author(s):  
Jiuhe Wang ◽  
Hongren Yin ◽  
Shengsheng Xu
Keyword(s):  
Control Strategy ◽  
Voltage Source ◽  
Phase Voltage ◽  
Three Phase ◽  
Pwm Rectifiers

Current predictive control of three-phase voltage source PWM rectifiers under unbalanced grid voltage conditions

2016 ◽  
Vol 39 (7) ◽  
pp. 976-986
Author(s):  
Meng Wang ◽  
Yanyan Shi ◽  
Zhen Qi ◽  
Minghui Shen
Keyword(s):  
Predictive Control ◽  
Control Strategy ◽  
Voltage Source ◽  
Phase Voltage ◽  
Two Phase ◽  
Grid Voltage ◽  
Three Phase ◽  
Pwm Rectifiers ◽  
Current Error ◽  
Unbalanced Grid

To improve the performance of three-phase voltage source pulse-width modulated (PWM) rectifiers (VSR) under unbalanced grid voltage conditions, a fixed-frequency current predictive control (CPC) strategy is presented. Instantaneous power of the three-phase VSR is analysed in a two-phase stationary frame. The calculation method for the reference current is improved to achieve the power stability at the AC side of the rectifier. Based on the current predictive model, the optimal duration of the voltage vectors is computed under the restricted condition of minimizing current error at α- and β-axes in fixed intervals. The control system is free of synchronous rotation coordinate transformation, and avoids positive and negative sequence decomposition, which simplifies the calculation. The simulation and experimental results show that the proposed control strategy is able to eliminate the AC current distortion effectively and depress DC link voltage fluctuation under unbalanced grid voltage. Furthermore, the control strategy has faster dynamic response ability, enhancing the control performance of the three-phase VSR system.

An Immune Fuzzy PI Controller for PWM Rectifiers

2014 ◽  
Vol 577 ◽  
pp. 321-324
Author(s):  
Ze Long Shao ◽  
Ming Quan Shi ◽  
Zhen Feng Han ◽  
Xiao Dong Wang ◽  
Qi Min Li
Keyword(s):  
Control Method ◽  
Pi Controller ◽  
Voltage Source ◽  
Phase Voltage ◽  
Matlab Toolbox ◽  
Three Phase ◽  
System Output ◽  
Fuzzy Pi Controller ◽  
Speed Stability ◽  
Pwm Rectifiers

This paper presents a new control method for three-phase voltage source rectifier to achieve a good system output response. The design process of fuzzy immune PI controller was described in detail. Moreover, a simulation model was built by the matlab toolbox to prove that rectifiers based on immune fuzzy PI controller have better performance in respond speed, stability and robustness ability, compared with rectifiers based on conventional PI controller.

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