DocumentCode :
3533709
Title :
Flatness-based-control for parallel operation of N voltage-source inverters
Author :
Houari, Azeddine ; Battiston, Alexandre ; Martin, Jean-Philippe ; Pierfederici, S. ; Meibody-Tabar, Farid
Author_Institution :
Univ. DE LORRAINE - GREEN, Vandoeuvre-lès-Nancy, France
fYear :
2013
fDate :
2-6 Sept. 2013
Firstpage :
1
Lastpage :
10
Abstract :
Parallel voltage-source inverters with common dc bus present very interesting advantages from an industrial point of view. Indeed, by paralleling several units the power supply system includes capability to handle high power requirement, modularity and the possibility of maintenance through redundancy, within an uninterruptible supply operation. However, a special attention is required to avoid the negative effect of the circulating currents in such configuration caused essentially by the asynchronous switching operations of the Pulse Width Modulations (PWM) specified to each unit. To deal with this problem, in this contribution a one loop controller based on the flatness technique is proposed to an isolated power supply composed by N units. These units connect the same dc source and the ac load. The objective of the new sharing controller is to take some advantages of the flat proprieties of the system in order to ensure both reduction of the circulating currents and high power quality at the Point of Common Connection (PCC).
Keywords :
PWM invertors; maintenance engineering; power control; power supply quality; uninterruptible power supplies; voltage control; DC bus; PCC; PWM; asynchronous switching operation; circulating current reduction; flatness-based-control; maintenance; one loop controller; parallel N voltage-source inverter; point of common connection; power quality; power supply system; pulse width modulation; uninterruptible power supply; Inverters; Load modeling; Noise; Power supplies; Pulse width modulation; Switches; Vectors; Circulating current; Flatness-based-control; Parallel voltage-source inverters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Applications (EPE), 2013 15th European Conference on
Conference_Location :
Lille
Type :
conf
DOI :
10.1109/EPE.2013.6631798
Filename :
6631798
Link To Document :
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