| Issue |
E3S Web Conf.
Volume 248, 2021
2021 3rd International Conference on Civil Architecture and Energy Science (CAES 2021)
|
|
|---|---|---|
| Article Number | 02005 | |
| Number of page(s) | 5 | |
| Section | Energy Technology Application and Energy Saving and Emission Reduction Research and Development | |
| DOI | https://doi.org/10.1051/e3sconf/202124802005 | |
| Published online | 12 April 2021 | |
PMSM low voltage ride through based on Coordinated Control Strategy
Datang Northeast Electric Power Test & Research Institute, Changchun, Jilin, China
* Corresponding author’s e-mail: 1004084545@qq.com
Based on the analysis of the operation characteristics of the fault of direct-drive permanent magnet wind turbine and the existing protection strategies, in order to improve the low-voltage operation capability of direct-drive permanent magnet wind turbine, a new coordinated control strategy for low-voltage crossing is proposed in this paper, which includes DC brake system control of unloading circuit, double second-order generalized integral phase-locked control, extracting positive and negative sequence of grid voltage and reactive power control on grid side. Based on the common three-phase symmetrical drop fault and asymmetrical fault caused by single grounding short circuit in power grid, PASCAD simulation experiment is conducted to verify the low voltage traversing ability of wind turbine.
© The Authors, published by EDP Sciences, 2021
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