Title :
PWM-controlled rectifiers without the need of an extra synchronisation unit
Author :
Zhong, Qing-Chang ; Ma, Zhenyu ; Nguyen, Phi-Long
Author_Institution :
Univ. of Sheffield, Sheffield, UK
Abstract :
A strategy is proposed to control the output voltage of a three-phase PWM-controlled rectifier, based on the synchronverter technology that operates PWM converters to mimic synchronous machines. Such a PWM-controlled rectifier is able to track the grid frequency and phase so that an extra synchronisation unit, e.g. a phase-locked loop (PLL), is not needed any more, which considerably reduces the computational burden of the controller. The strategy is verified with simulations in Matlab/Simulink.
Keywords :
PWM power convertors; PWM rectifiers; power grids; synchronous machines; voltage control; Matlab/Simulink; PWM converters; grid frequency; grid phase; output voltage control; synchronous machines; synchronverter technology; three-phase PWM-controlled rectifier; Radio access networks; Software packages; PWM-controlled rectifiers; phase-locked loop (PLL); synchronverter; unity power factor;
Conference_Titel :
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-2419-9
Electronic_ISBN :
1553-572X
DOI :
10.1109/IECON.2012.6388668
