| Issue |
E3S Web Conf.
Volume 260, 2021
2021 International Conference on Advanced Energy, Power and Electrical Engineering (AEPEE2021)
|
|
|---|---|---|
| Article Number | 02015 | |
| Number of page(s) | 7 | |
| Section | Power Electronics Technology and Application | |
| DOI | https://doi.org/10.1051/e3sconf/202126002015 | |
| Published online | 19 May 2021 | |
Research on control strategy for AC side asymmetric fault of MMC-HVDC transmission system
College of Electrical and Information Engineering, Lanzhou University of Technology, China
* Corresponding author: 2775214955@qq.com
When the Modular Multilevel Converter (MMC) fails on the AC side, the operating characteristics of MMC will be damaged. If the system wants to retain stable for a long time in the process of operation, it is obliged to design the control strategy in case of asymmetric fault. In this article, the control strategy based on feedback linearization principle is adopted to diminish the negative sequence current caused by breakdown, and a DC voltage controller is devised to suppress the fluctuation of the double frequency component under asymmetric fault conditions. The validity of the control strategy requires to be verified, the running results on PSCAD platform indicate this method is effective and feasible.
© The Authors, published by EDP Sciences, 2021
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