Dynamic Performance Improvement of AC/DC Converter Using Model Predictive Direct Power Control With Finite Control Set

2015 ◽  
Vol 62 (2) ◽  
pp. 757-767 ◽  
Author(s):  
Dae-Keun Choi ◽  
Kyo-Beum Lee
2018 ◽  
Vol 54 (5) ◽  
pp. 4476-4484 ◽  
Author(s):  
Allan Gregori de Castro ◽  
William Cesar Andrade Pereira ◽  
Thales Eugenio Portes de Almeida ◽  
Carlos Matheus Rodrigues de Oliveira ◽  
Jose Roberto Boffino de Almeida Monteiro ◽  
...  

Author(s):  
Allan G. de Castro ◽  
William C. A. Pereira ◽  
Thales E. P. Almeida ◽  
Carlos M. R. de Oliveira ◽  
Jose R. B. A. Monteiro ◽  
...  

Author(s):  
Nor Azizah Mohd Yusoff ◽  
Azziddin M. Razali ◽  
Kasrul Abdul Karim ◽  
Auzani Jidin ◽  
Tole Sutikno

<p>This paper presents an analysis of virtual-flux direct power control (VFDPC) technique for the three-phase pulse width modulation (PWM) ac-dc converter. The proposed VFDPC is developed by assuming the grid voltage and converter line filters quantities are related to a virtual three-phase ac motor. The controller works with less number of sensors by eliminating the voltage sensors used for measuring the three-phase grid voltage. The grid virtual flux which is proportional to the grid voltage will be estimated from the information of converter switching states, line current, and dc-link output voltage. Several analyses are performed in order to study the steady state and dynamic performance of the converter, particularly during the load and DC voltage output reference variations. The proportional integral (PI) controller at the outer voltage control loop of VFDPC is tuned properly and the entire PWM ac-dc converter system is simulated using MATLAB/Simulink to ensure the dc output voltage follow the desired output voltage under steady state and dynamic conditions. Ac-dc converter utilizing the proposed VFDPC is able to generate three-phase input current waveforms that are almost sinusoidal with low harmonics contents which is less than 5% and near unity power factor (<em>pf</em>) operation.</p>


Author(s):  
A. Rahab ◽  
F. Senani ◽  
H. Benalla

This article describes firstly a wind power production line, principally a wind turbine constitutes her and brushless doubly fed induction generator (BDFIG). The models of these components are developed, and control objective of BDFIG is to achieve a dynamic performance similar to the doubly fed induction generator (DFIG) using a stator flux field oriented control (FOC) and direct power control (DPC) strategy. After, the simulation program using Matlab/Simulink has been developed. The performances of this strategy are evaluated and analyzed, so the results show a good robustness great dynamic and a precision of speed.


2013 ◽  
Vol 28 (7) ◽  
pp. 3428-3437 ◽  
Author(s):  
Yongchang Zhang ◽  
Zhengxi Li ◽  
Yingchao Zhang ◽  
Wei Xie ◽  
Zhengguo Piao ◽  
...  

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