Performance enhancement of DSOGI-PLL with a simple approach in grid-connected applications
In the literature history, many enhanced phase locked loops (PLLs) have been presented to enhance the performance of synchronous reference frame-PLL (SRF-PLL) against the grid imbalances and disturbances. One of these methods is a dual second order generalized integrator-PLL (DSOGI-PLL), which provi...
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| Autores principales: | , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/ad947254be794436a5a07bb9096b92f5 |
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| Sumario: | In the literature history, many enhanced phase locked loops (PLLs) have been presented to enhance the performance of synchronous reference frame-PLL (SRF-PLL) against the grid imbalances and disturbances. One of these methods is a dual second order generalized integrator-PLL (DSOGI-PLL), which provides a perfect imbalance rejection capability. However, the DSOGI-PLL has a large convergence time and frequency overshoot, which brings a serious problem for grid-connected equipments. The aim of this study is to improve the performance of standard DSOGI-PLL without decreasing its disturbance rejection capability. In accordance with this purpose, a simple yet effective method is proposed. The effectiveness of advanced DSOGI-PLL is verified by experimental results. |
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