Advanced grid synchronization system for power converters under unbalanced and distorted operating conditions

P. Rodríguez, A. Luna, M. Ciobotaru, R. Teodorescu, F. Blaabjerg

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

333 Citations (Scopus)

Abstract

This paper proposes a new technique for grid synchronization under unbalanced and distorted conditions, i.e., the Dual Second Order Generalised Integrator - Frequency-Locked Loop (DSOGI-FLL). This grid synchronization system results from the application of the instantaneous symmetrical components method on the stationary and orthogonal reference frame. The second order generalized integrator concept (SOGI) is exploited to generate in-quadrature signals used on the reference frame. The frequency-adaptive characteristic is achieved by a simple control loop, without using either phase-angles or trigonometric functions. In this paper, the development of the DSOGI-FLL is plainly exposed and hypothesis and conclusions are veritled by simulation and experimental results.
Original languageEnglish
Title of host publicationIECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics
Pages5173-5178
Number of pages6
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventIECON - Annual Conference on IEEE Industrial Electronics (32nd : 2006) - Paris, France
Duration: 6 Nov 200610 Nov 2006

Conference

ConferenceIECON - Annual Conference on IEEE Industrial Electronics (32nd : 2006)
CountryFrance
CityParis
Period6/11/0610/11/06

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  • Cite this

    Rodríguez, P., Luna, A., Ciobotaru, M., Teodorescu, R., & Blaabjerg, F. (2006). Advanced grid synchronization system for power converters under unbalanced and distorted operating conditions. In IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics (pp. 5173-5178) https://doi.org/10.1109/IECON.2006.347807