Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/142843
Title: Impedance Analysis of SOGI-FLL-Based Grid Synchronization
Authors: Hao Yi;Xiongfei Wang;Frede Blaabjerg;Fang Zhuo
Year: 2017
Publisher: IEEE
Abstract: The latest research has pointed out that the phase-locked loop (PLL) plays an important role in shaping the impedance of grid-connected converters, yet most of the works so far merely focus on the synchronous reference-frame PLL. Alternatively, this letter presents the impedance analysis of the second-order generalized integrator frequency-locked loop (SOGI-FLL), which has been introduced for realizing grid synchronization in the stationary reference frame. The influences of the voltage perturbation on the estimated phase and further on the output current are revealed for the grid-connected converter using the SOGI-FLL. The frequency-coupling effect of the SOGI-FLL is also identified and verified in the experimental tests.
URI: http://localhost/handle/Hannan/142843
volume: 32
issue: 10
More Information: 7409,
7413
Appears in Collections:2017

Files in This Item:
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Title: Impedance Analysis of SOGI-FLL-Based Grid Synchronization
Authors: Hao Yi;Xiongfei Wang;Frede Blaabjerg;Fang Zhuo
Year: 2017
Publisher: IEEE
Abstract: The latest research has pointed out that the phase-locked loop (PLL) plays an important role in shaping the impedance of grid-connected converters, yet most of the works so far merely focus on the synchronous reference-frame PLL. Alternatively, this letter presents the impedance analysis of the second-order generalized integrator frequency-locked loop (SOGI-FLL), which has been introduced for realizing grid synchronization in the stationary reference frame. The influences of the voltage perturbation on the estimated phase and further on the output current are revealed for the grid-connected converter using the SOGI-FLL. The frequency-coupling effect of the SOGI-FLL is also identified and verified in the experimental tests.
URI: http://localhost/handle/Hannan/142843
volume: 32
issue: 10
More Information: 7409,
7413
Appears in Collections:2017

Files in This Item:
File Description SizeFormat 
7862897.pdf523.9 kBAdobe PDFThumbnail
Preview File
Title: Impedance Analysis of SOGI-FLL-Based Grid Synchronization
Authors: Hao Yi;Xiongfei Wang;Frede Blaabjerg;Fang Zhuo
Year: 2017
Publisher: IEEE
Abstract: The latest research has pointed out that the phase-locked loop (PLL) plays an important role in shaping the impedance of grid-connected converters, yet most of the works so far merely focus on the synchronous reference-frame PLL. Alternatively, this letter presents the impedance analysis of the second-order generalized integrator frequency-locked loop (SOGI-FLL), which has been introduced for realizing grid synchronization in the stationary reference frame. The influences of the voltage perturbation on the estimated phase and further on the output current are revealed for the grid-connected converter using the SOGI-FLL. The frequency-coupling effect of the SOGI-FLL is also identified and verified in the experimental tests.
URI: http://localhost/handle/Hannan/142843
volume: 32
issue: 10
More Information: 7409,
7413
Appears in Collections:2017

Files in This Item:
File Description SizeFormat 
7862897.pdf523.9 kBAdobe PDFThumbnail
Preview File