Simulation and experimental validation of VOC and hysteresis control strategies of unit power factor three-phase PWM rectifier

2017 ◽  
Author(s):  
F.E. Tahiri ◽  
K. Chikh ◽  
A. El Afia ◽  
J. Lamterkati ◽  
M. Khafallah
Keyword(s):  
Power Factor ◽  
Experimental Validation ◽  
Control Strategies ◽  
Pwm Rectifier ◽  
Unit Power ◽  
Three Phase ◽  
Hysteresis Control

Artificial Neural Network for PWM Rectifier Direct Power Control and DC Voltage Control

2018 ◽  
pp. 286-316 ◽  
Author(s):  
Arezki Fekik ◽  
Hakim Denoun ◽  
Ahmad Taher Azar ◽  
Mustapha Zaouia ◽  
Nabil Benyahia ◽  
...  
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Power Control ◽  
Power Factor ◽  
Reactive Power ◽  
Pwm Rectifier ◽  
Direct Power ◽  
Direct Power Control ◽  
Dc Voltage ◽  
Unit Power

In this chapter, a new technique has been proposed for reducing the harmonic content of a three-phase PWM rectifier connected to the networks with a unit power factor and also providing decoupled control of the active and reactive instantaneous power. This technique called direct power control (DPC) is based on artificial neural network (ANN) controller, without line voltage sensors. The control technique is based on well-known direct torque control (DTC) ideas for the induction motor, which is applied to eliminate the harmonic of the line current and compensate for the reactive power. The main idea of this control is based on active and reactive power control loops. The DC voltage capacitor is regulated by the ANN controller to keep it constant and also provides a stable active power exchange. The simulation results are very satisfactory in the terms of stability and total harmonic distortion (THD) of the line current and the unit power factor.

Vector Decoupling Control Strategy for Three-Phase Voltage Source PWM Rectifier

2013 ◽  
Vol 336-338 ◽  
pp. 450-453
Author(s):  
Jian Ying Li ◽  
Wei Dong Yang ◽  
Ni Na Ma
Keyword(s):  
Power Factor ◽  
Control Strategy ◽  
Reactive Power ◽  
Decoupling Control ◽  
Voltage Source ◽  
Pwm Rectifier ◽  
Phase Voltage ◽  
Unity Power Factor ◽  
Three Phase ◽  
Rotating Coordinates

In view of the fact that active power and reactive power have coupling relation, a novel vector decoupling control strategy is presented for three-phase voltage source PWM rectifier. In the paper, the power control mathematical mode of the PWM rectifier is deduced based on the mathematical model of rectifier in synchronous d-q rotating coordinates, and a new voltage feed forward decoupling compensation control strategy is proposed. The simulation results show that the voltage and current of the three-phase PWM rectifier have better respond preference, the current aberrance is smaller and the voltage is steady under the control strategy. The PWM rectifier can implement PWM commute with unity power factor, but also feed back the energy to AC side with unity power factor.

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