scholarly journals Three-phase diode rectifier with current modulator in DC circuit based on multi-channel converter

2017 ◽  
Vol 66 (3) ◽  
pp. 533-545 ◽  
Author(s):  
Michal Krystkowiak ◽  
Michal Gwóźdź
Keyword(s):  
Current Source ◽  
Wide Band ◽  
Input Power ◽  
System Stability ◽  
System Description ◽  
Three Phase ◽  
Sinusoidal Input ◽  
Power Diode ◽  
Laboratory Prototype ◽  
A Current

AbstractIn the paper the 3-phase power diode rectifier system with quasi-sinusoidal input (power grid) current is presented. In order to benefit from it, the current modulation in the DC circuit of a rectifier is used. The essential part of the current modulator is the wide-band power electronics controlled current source based on a multi-channel converter. The control algorithm of the current modulator respects impact of aliasing phenomena at system stability by using the method proposed by the authors. The paper includes the rectifier system description and rules of operation of the current modulator. Also, some results of research on both the rectifier simulation model and the laboratory prototype of a current modulator are presented.

A Novel Three-Phase AC/AC Converter Using Six Switches

2012 ◽  
Vol 591-593 ◽  
pp. 1776-1779
Author(s):  
Tsung Cheng Chen ◽  
Gwo Jen Chiou ◽  
Chen Chih Yang ◽  
Jeng Yue Chen
Keyword(s):  
Pulse Width Modulation ◽  
Mathematic Model ◽  
Input Power ◽  
Average Technique ◽  
Three Phase ◽  
Sinusoidal Input ◽  
Power Switches ◽  
Optimum Period ◽  
Sinusoidal Pulse Width Modulation ◽  
Stable Control

In this paper, a novel three-phase AC/AC converter is proposed. The proposed converter consists of six power switches, three capacitors, three input inductors and three output inductors. The proposed converter has several advantages such as sinusoidal input-output current, adjustable frequency, unity input power factor and lower switch cost etc. Based on the sinusoidal pulse width modulation techniques and zero vector control strategy, the converter combines three-phase AC/DC converter and three-phase DC/AC inverter to generate a single-stage converter controlled in the same period. By fixed capacitor ratio, the duty functions of converter and inverter are operated in optimum period for more stable control. The software VisSim and TI TMS320F2812 are adopted to implement the proposed converter. Besides, the mathematic model of the proposed converter is established by the state average technique. Finally, some experimental results are compared with the proposed theory for verification.

scholarly journals Modelling a Three-Phase Current Source Inverter

2016 ◽  
Vol 44 (2) ◽  
pp. 105-111
Author(s):  
László Neukirchner ◽  
Attila Magyar
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Current Source ◽  
Open Loop ◽  
Control Structures ◽  
Piecewise Affine ◽  
Current Source Inverter ◽  
Three Phase ◽  
The Given ◽  
A Current

Abstract A current source inverter model has been developed in the given paper that is constructed from six LTI models for the different switching modes. The overall model is in a piecewise affine form that supports the use of model predictive control. The model has been verified against engineering expectations and its open-loop performance shows that it is a promising basis of model predictive control structures.

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