Grid Synchronization of Power Converters using Multiple Second Order Generalized Integrators
Location: USA
Publication date: 2008-11-01
Published in: Annual Conference of the IEEE Industrial Electronics Society 2008, Orlando (USA) - IECON 2008
ref. DOI: 10.1109/IECON.2008.4758048

Local members

Alvaro Luna

PhD. Senior Researcher.

Jose Ignacio Candela

PhD. Senior Researcher. Project Responsible

External members

Teodorescu, R. , Blaabjerg, F.



This paper presents a new frequency-adaptive synchronization method for grid-connected powerconverters which allows estimating not only the positive- and negative-sequence components of the power signal at the fundamental frequency, but also other sequence components at higher frequencies. The proposed system is called the MSOGI-FLL since it is based on a decoupled network consisting of multiple second order generalized integrators (MSOGI) which are frequency-adaptive by using a frequency-locked loop (FLL). In this paper, the MSOGI-FLL is analyzed and its performance is evaluated by both simulations and experiments.


Associated projects

National public