Design and implementation of high performance direct power control of three-phase PWM rectifier, via fuzzy and PI controller for output voltage regulation

2009 ◽  
Vol 50 (1) ◽  
pp. 6-13 ◽  
Author(s):  
Abdelouahab Bouafia ◽  
Fateh Krim ◽  
Jean-Paul Gaubert
Keyword(s):  
Power Control ◽  
Output Voltage ◽  
High Performance ◽  
Voltage Regulation ◽  
Pi Controller ◽  
Pwm Rectifier ◽  
Direct Power ◽  
Direct Power Control ◽  
Design And Implementation ◽  
Three Phase

scholarly journals Direct Power Control Strategy of PWM Rectifier Based on Improved Virtual Flux-Linkage Observer

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Wenshao BU ◽  
Leilei Xu
Keyword(s):  
Power Control ◽  
High Performance ◽  
Low Cost ◽  
Power Grid ◽  
Pwm Rectifier ◽  
Flux Linkage ◽  
Direct Power ◽  
Direct Power Control ◽  
Three Phase ◽  
Virtual Flux

In order to achieve the low cost and high performance control of three-phase PWM rectifier, a direct power control (DPC) strategy based on a new-style virtual flux-linkage observer is proposed. The model of three-phase PWM rectifier and the principle of virtual flux-linkage vector control are introduced firstly. Then, in order to avoid the effect of integral initial value and cumulative deviation, three first-order low-pass filters are cascaded to replace the pure integral link; an improved virtual flux-linkage observer of three-phase power grid is presented. From the observed virtual flux-linkage, the voltage and instantaneous power of three-phase power grid are online estimated. On this basis, the power grid voltage sensorless direct power control system of three-phase PWM rectifier is designed. Simulation results have shown that, both in the rectifying state and in the inverting state, the power grid side current and the DC side voltage of three-phase PWM rectifier all can be effectively controlled; the high power factor operation of three-phase PWM rectifier is realized.

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