An improved prediction method of subsequent commutation failure of an LCC-HVDC considering sequential control response

Protection and Control of Modern Power Systems

Original Research

Yanbo Diao¹  Chao Xiao²  Qingwu Zhang³  Jinxin Ouyang⁴  Junjun Ye⁴  Xinyu Pan⁴ 

[1] Chongqing City Management College, 401331, Chongqing, China;Electric Power Research Institute of State Grid Henan Electric Power Company, 450052, Zhengzhou, China;NR Electric Co., Ltd, 211100, Nanjing, China;State Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering, Chongqing University, 400044, Chongqing, China;

关键词: Line-commutated converter based high-voltage direct-current (LCC-HVDC);    Subsequent commutation failure (SCF);    Converter station;    Prediction;   

DOI  :  10.1186/s41601-023-00323-9

 received in 2022-12-08, accepted in 2023-09-06,  发布年份 2023

来源: Springer

【 摘 要 】

Subsequent commutation failure (SCF) can be easily generated during the first commutation failure (CF) recovery process in a line-commutated converter-based high voltage direct-current system. SCF poses a significant threat to the safe and stable operation of power systems, and accurate prediction of CF is thus important. However, SCF is affected by the operating characteristics of the main circuit and the coupling effects of sequential control response in the inverter station. These are difficult to predict accurately. In this paper, a new SCF prediction method considering the control response is proposed based on the physical principle of SCF. The time sequence and switching conditions of the controllers at different stages of the first CF recovery process are described, and the corresponding equations of commutation voltage affected by different controllers are derived. The calculation method of the SCF threshold voltage is proposed, and the prediction method is established. Simulations show that the proposed method can predict SCF accurately and provide useful tools to suppress SCF.

【 授权许可】

CC BY   
© Power System Protection and Control Press 2023

【 图 表 】

13690_2023_1170_Article_IEq22.gif

Fig. 3

13690_2023_1170_Article_IEq21.gif

Fig. 1

12888_2023_5172_Article_IEq45.gif

Fig. 2

12888_2023_5172_Article_IEq42.gif

12888_2023_5172_Article_IEq41.gif

12888_2023_5172_Article_IEq52.gif

Fig. 1

Fig. 1

Fig. 3

13690_2023_1170_Article_IEq17.gif

12936_2023_4724_Article_IEq75.gif

13690_2023_1170_Article_IEq16.gif

40677_2023_249_Article_IEq13.gif

Fig. 8

Fig. 6

13690_2023_1170_Article_IEq7.gif

Fig. 1

13690_2023_1177_Figb_HTML.png

42004_2023_990_Article_IEq11.gif

13690_2023_1170_Article_IEq4.gif

Fig. 1

Fig. 1

13690_2023_1170_Article_IEq3.gif

Fig. 5

Fig. 3

Fig. 9

Fig. 7

Fig. 2

Fig. 3

Fig. 3

Fig. 3

Fig. 2

Fig. 4

Fig. 2

12888_2023_5172_Article_IEq4.gif

Fig. 1

Fig. 1

Fig. 1

41408_2023_902_Tab1_HTML.png

Fig. 2

12888_2023_5142_Article_IEq10.gif

Fig. 5

Fig. 3

13690_2023_1170_Article_IEq66.gif

Fig. 6

Fig. 8

12951_2023_2095_Article_IEq1.gif

13690_2023_1170_Article_IEq161.gif

Fig. 6

Fig. 1

Fig. 5