期刊名称:International Journal of Electrical and Computer Engineering
电子版ISSN:2088-8708
出版年度:2014
卷号:4
期号:3
页码:322-328
DOI:10.11591/ijece.v4i3.6074
语种:English
出版社:Institute of Advanced Engineering and Science (IAES)
摘要:The aim of this paper is to compare two different control structures. The Simple Direct Power Control (DPC) and the Direct Power Control with Space Vector Modulation (DPC- SVM) for two level converter applications. The first strategy (DPC) has been developed to control the instantaneous active and reactive power directly by selecting the optimum switching state of the converter. Applied to the Pulse Width Modulation (PWM) converter its main feature is to improve the total power factor and efficiency, even harmonics components existence. In the second structure, the active and reactive powers are used as (PWM) control vari- ables instead of the three-phase line currents usually used in other techniques. It is shown that DPC-SVM exhibits several properties; good dynamic response, constant switching fre- quency, and in particular it provides a sinusoidal line currents. Simulation and experimental results has shown that both control structures achieve good performances.
关键词:Electrical engineering (Power) and control;Direct power control;space vector modulation;Dspace; power quality