Research on AC fault ride through strategy for LCC-VSC based on trigger angle clamp control

Hu Yuanting; Wang Wenlong; Huo Qidi; Wang Qian; Zhang Rui; Tang Xiaojun

doi:10.1117/12.3024448

13 May 2024 Research on AC fault ride through strategy for LCC-VSC based on trigger angle clamp control

Hu Yuanting, Wang Wenlong, Huo Qidi, Wang Qian, Zhang Rui, Tang Xiaojun

Proceedings Volume 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023); 131599K (2024) https://doi.org/10.1117/12.3024448
Event: Eighth International Conference on Energy System, Electricity and Power (ESEP 2023), 2023, Wuhan, China

Abstract

The hybrid line commutated converter (LCC)- voltage source converter (VSC) high voltage direct current transmission system has both the advantages of LCC and VSC technology. However, once an AC fault occurs at the receiving end, the DC voltage will rise sharply due to the unbalanced power. To tackle this DC overvoltage problem, one AC fault ride through strategy for LCC-VSC based on trigger angle clamp control is proposed. Firstly, the DC overvoltage mechanism of LCC-VSC is studied. Then the trigger angle clamp control strategy for LCC is discussed, based on which an AC fault ride through strategy is proposed. The trigger angle clamp control strategy can maximize the control capability of the overvoltage problem by clamping the trigger angle to the maximum value when the AC fault occurs. The comparative simulation results in PSCAD/EMTDC can validate the effectiveness of the proposed method.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hu Yuanting, Wang Wenlong, Huo Qidi, Wang Qian, Zhang Rui, and Tang Xiaojun "Research on AC fault ride through strategy for LCC-VSC based on trigger angle clamp control", Proc. SPIE 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023), 131599K (13 May 2024); https://doi.org/10.1117/12.3024448

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