| Issue |
E3S Web Conf.
Volume 69, 2018
International Conference Green Energy and Smart Grids (GESG 2018)
|
|
|---|---|---|
| Article Number | 01001 | |
| Number of page(s) | 5 | |
| Section | Properties, Regimes and Development of Renewable Energy Sources | |
| DOI | https://doi.org/10.1051/e3sconf/20186901001 | |
| Published online | 27 November 2018 | |
New power decoupling strategy for grid-connected inverter under weak power grid
Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology
* Corresponding author :rjwai@mail.ntust.edu.tw
This study analyzes the power coupling in a weak power grid, and designs a novel decoupling method for the coupling power with multi harmonic frequency on the dc bus. By introducing a ratio factor for the dc-bus capacitors, the decoupling ability can be further improved. Moreover, the sliding-mode controller will enhance the system robustness and be adaptive on the varied condition of the power coupling. The proposed control strategy will be effective under the ideal power grid or even the non-ideal power grid. In addition, numerical simulations are provided to verify the effectiveness of the proposed method.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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